Home / 103,890,461.20-155,732,902.80-49,206,931.90

Finding the Fourth Proportional to 103,890,461.20, 155,732,902.80 and 49,206,931.90

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Solution

The fourth proportional to 103,890,461.20, 155,732,902.80 and 49,206,931.90 is: 73,761,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,890,461.20 : 155,732,902.80 = 49,206,931.90 : x
  2. Step 2: Convert to fraction form
    103,890,461.20/155,732,902.80 = 49,206,931.90/x
  3. Step 3: Cross multiply
    103,890,461.20x = 155,732,902.80 × 49,206,931.90
  4. Step 4: Simplify right side
    103,890,461.20x = 7,663,138,342,668,920
  5. Step 5: Solve for x
    x = 7,663,138,342,668,920/103,890,461.20
  6. Step 6: Final answer
    x = 73,761,712.62

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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.