Home / 1,309,210,561,549.40-1,806,448,543,080.70-731,058,123,058.72

Finding the Fourth Proportional to 1,309,210,561,549.40, 1,806,448,543,080.70 and 731,058,123,058.72

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Solution

The fourth proportional to 1,309,210,561,549.40, 1,806,448,543,080.70 and 731,058,123,058.72 is: 1,008,713,892,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,210,561,549.40 : 1,806,448,543,080.70 = 731,058,123,058.72 : x
  2. Step 2: Convert to fraction form
    1,309,210,561,549.40/1,806,448,543,080.70 = 731,058,123,058.72/x
  3. Step 3: Cross multiply
    1,309,210,561,549.40x = 1,806,448,543,080.70 × 731,058,123,058.72
  4. Step 4: Simplify right side
    1,309,210,561,549.40x = 1,320,618,881,306,735,834,824,704
  5. Step 5: Solve for x
    x = 1,320,618,881,306,735,834,824,704/1,309,210,561,549.40
  6. Step 6: Final answer
    x = 1,008,713,892,243.46

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Double scale
Find fourth proportional to 1,309,210,561,550.40, 1,806,448,543,082.08 and 731,058,123,059.72
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.