Home / 74,367,139.20-111,550,708.80-69,265,305.60

Finding the Fourth Proportional to 74,367,139.20, 111,550,708.80 and 69,265,305.60

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Solution

The fourth proportional to 74,367,139.20, 111,550,708.80 and 69,265,305.60 is: 103,897,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,367,139.20 : 111,550,708.80 = 69,265,305.60 : x
  2. Step 2: Convert to fraction form
    74,367,139.20/111,550,708.80 = 69,265,305.60/x
  3. Step 3: Cross multiply
    74,367,139.20x = 111,550,708.80 × 69,265,305.60
  4. Step 4: Simplify right side
    74,367,139.20x = 7,726,593,934,928,608
  5. Step 5: Solve for x
    x = 7,726,593,934,928,608/74,367,139.20
  6. Step 6: Final answer
    x = 103,897,958.40

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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.