Home / 1,229,349,309.57-1,696,507,158.56-664,834,191.17

Finding the Fourth Proportional to 1,229,349,309.57, 1,696,507,158.56 and 664,834,191.17

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Solution

The fourth proportional to 1,229,349,309.57, 1,696,507,158.56 and 664,834,191.17 is: 917,473,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,349,309.57 : 1,696,507,158.56 = 664,834,191.17 : x
  2. Step 2: Convert to fraction form
    1,229,349,309.57/1,696,507,158.56 = 664,834,191.17/x
  3. Step 3: Cross multiply
    1,229,349,309.57x = 1,696,507,158.56 × 664,834,191.17
  4. Step 4: Simplify right side
    1,229,349,309.57x = 1,127,895,964,563,545,856
  5. Step 5: Solve for x
    x = 1,127,895,964,563,545,856/1,229,349,309.57
  6. Step 6: Final answer
    x = 917,473,948.03

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Half scale
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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.