Home / 74,239,609.60-111,359,414.40-66,429,395.20

Finding the Fourth Proportional to 74,239,609.60, 111,359,414.40 and 66,429,395.20

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Solution

The fourth proportional to 74,239,609.60, 111,359,414.40 and 66,429,395.20 is: 99,644,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,239,609.60 : 111,359,414.40 = 66,429,395.20 : x
  2. Step 2: Convert to fraction form
    74,239,609.60/111,359,414.40 = 66,429,395.20/x
  3. Step 3: Cross multiply
    74,239,609.60x = 111,359,414.40 × 66,429,395.20
  4. Step 4: Simplify right side
    74,239,609.60x = 7,397,538,548,418,172
  5. Step 5: Solve for x
    x = 7,397,538,548,418,172/74,239,609.60
  6. Step 6: Final answer
    x = 99,644,092.80

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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.