Home / 631,123,569.90-870,933,819.53-352,667,381.58

Finding the Fourth Proportional to 631,123,569.90, 870,933,819.53 and 352,667,381.58

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Solution

The fourth proportional to 631,123,569.90, 870,933,819.53 and 352,667,381.58 is: 486,671,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,569.90 : 870,933,819.53 = 352,667,381.58 : x
  2. Step 2: Convert to fraction form
    631,123,569.90/870,933,819.53 = 352,667,381.58/x
  3. Step 3: Cross multiply
    631,123,569.90x = 870,933,819.53 × 352,667,381.58
  4. Step 4: Simplify right side
    631,123,569.90x = 307,149,949,661,350,016
  5. Step 5: Solve for x
    x = 307,149,949,661,350,016/631,123,569.90
  6. Step 6: Final answer
    x = 486,671,650.86

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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.