Home / 74,239,629.60-111,359,444.40-66,429,415.20

Finding the Fourth Proportional to 74,239,629.60, 111,359,444.40 and 66,429,415.20

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Solution

The fourth proportional to 74,239,629.60, 111,359,444.40 and 66,429,415.20 is: 99,644,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,239,629.60 : 111,359,444.40 = 66,429,415.20 : x
  2. Step 2: Convert to fraction form
    74,239,629.60/111,359,444.40 = 66,429,415.20/x
  3. Step 3: Cross multiply
    74,239,629.60x = 111,359,444.40 × 66,429,415.20
  4. Step 4: Simplify right side
    74,239,629.60x = 7,397,542,768,488,916
  5. Step 5: Solve for x
    x = 7,397,542,768,488,916/74,239,629.60
  6. Step 6: Final answer
    x = 99,644,122.80

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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.