Home / 103,890,436.20-155,732,865.30-49,206,906.90

Finding the Fourth Proportional to 103,890,436.20, 155,732,865.30 and 49,206,906.90

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Solution

The fourth proportional to 103,890,436.20, 155,732,865.30 and 49,206,906.90 is: 73,761,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,890,436.20 : 155,732,865.30 = 49,206,906.90 : x
  2. Step 2: Convert to fraction form
    103,890,436.20/155,732,865.30 = 49,206,906.90/x
  3. Step 3: Cross multiply
    103,890,436.20x = 155,732,865.30 × 49,206,906.90
  4. Step 4: Simplify right side
    103,890,436.20x = 7,663,132,604,087,341
  5. Step 5: Solve for x
    x = 7,663,132,604,087,341/103,890,436.20
  6. Step 6: Final answer
    x = 73,761,675.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.