Home / 631,123,753.17-870,934,072.45-352,667,564.85

Finding the Fourth Proportional to 631,123,753.17, 870,934,072.45 and 352,667,564.85

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Solution

The fourth proportional to 631,123,753.17, 870,934,072.45 and 352,667,564.85 is: 486,671,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,753.17 : 870,934,072.45 = 352,667,564.85 : x
  2. Step 2: Convert to fraction form
    631,123,753.17/870,934,072.45 = 352,667,564.85/x
  3. Step 3: Cross multiply
    631,123,753.17x = 870,934,072.45 × 352,667,564.85
  4. Step 4: Simplify right side
    631,123,753.17x = 307,150,198,478,878,784
  5. Step 5: Solve for x
    x = 307,150,198,478,878,784/631,123,753.17
  6. Step 6: Final answer
    x = 486,671,903.78

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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.