Home / 103,423,557.92-142,725,472.65-57,015,472.59

Finding the Fourth Proportional to 103,423,557.92, 142,725,472.65 and 57,015,472.59

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Solution

The fourth proportional to 103,423,557.92, 142,725,472.65 and 57,015,472.59 is: 78,681,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,423,557.92 : 142,725,472.65 = 57,015,472.59 : x
  2. Step 2: Convert to fraction form
    103,423,557.92/142,725,472.65 = 57,015,472.59/x
  3. Step 3: Cross multiply
    103,423,557.92x = 142,725,472.65 × 57,015,472.59
  4. Step 4: Simplify right side
    103,423,557.92x = 8,137,560,273,770,871
  5. Step 5: Solve for x
    x = 8,137,560,273,770,871/103,423,557.92
  6. Step 6: Final answer
    x = 78,681,882.91

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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.