Home / 66,445,614.80-99,668,422.20-39,123,861.20

Finding the Fourth Proportional to 66,445,614.80, 99,668,422.20 and 39,123,861.20

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Solution

The fourth proportional to 66,445,614.80, 99,668,422.20 and 39,123,861.20 is: 58,685,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,614.80 : 99,668,422.20 = 39,123,861.20 : x
  2. Step 2: Convert to fraction form
    66,445,614.80/99,668,422.20 = 39,123,861.20/x
  3. Step 3: Cross multiply
    66,445,614.80x = 99,668,422.20 × 39,123,861.20
  4. Step 4: Simplify right side
    66,445,614.80x = 3,899,413,516,175,799
  5. Step 5: Solve for x
    x = 3,899,413,516,175,799/66,445,614.80
  6. Step 6: Final answer
    x = 58,685,791.80

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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.