Home / 885,762,389.17-1,222,389,207.48-509,419,232.56

Finding the Fourth Proportional to 885,762,389.17, 1,222,389,207.48 and 509,419,232.56

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Solution

The fourth proportional to 885,762,389.17, 1,222,389,207.48 and 509,419,232.56 is: 703,019,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,762,389.17 : 1,222,389,207.48 = 509,419,232.56 : x
  2. Step 2: Convert to fraction form
    885,762,389.17/1,222,389,207.48 = 509,419,232.56/x
  3. Step 3: Cross multiply
    885,762,389.17x = 1,222,389,207.48 × 509,419,232.56
  4. Step 4: Simplify right side
    885,762,389.17x = 622,708,571,964,088,192
  5. Step 5: Solve for x
    x = 622,708,571,964,088,192/885,762,389.17
  6. Step 6: Final answer
    x = 703,019,883.86

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Double scale
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1.5x scale

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.