Home / 631,123,572.40-870,933,822.97-352,667,384.08

Finding the Fourth Proportional to 631,123,572.40, 870,933,822.97 and 352,667,384.08

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Solution

The fourth proportional to 631,123,572.40, 870,933,822.97 and 352,667,384.08 is: 486,671,654.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,572.40 : 870,933,822.97 = 352,667,384.08 : x
  2. Step 2: Convert to fraction form
    631,123,572.40/870,933,822.97 = 352,667,384.08/x
  3. Step 3: Cross multiply
    631,123,572.40x = 870,933,822.97 × 352,667,384.08
  4. Step 4: Simplify right side
    631,123,572.40x = 307,149,953,053,623,680
  5. Step 5: Solve for x
    x = 307,149,953,053,623,680/631,123,572.40
  6. Step 6: Final answer
    x = 486,671,654.31

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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.