Home / 138,292,500.20-207,438,750.30-69,417,746.60

Finding the Fourth Proportional to 138,292,500.20, 207,438,750.30 and 69,417,746.60

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Solution

The fourth proportional to 138,292,500.20, 207,438,750.30 and 69,417,746.60 is: 104,126,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,292,500.20 : 207,438,750.30 = 69,417,746.60 : x
  2. Step 2: Convert to fraction form
    138,292,500.20/207,438,750.30 = 69,417,746.60/x
  3. Step 3: Cross multiply
    138,292,500.20x = 207,438,750.30 × 69,417,746.60
  4. Step 4: Simplify right side
    138,292,500.20x = 14,399,930,603,346,074
  5. Step 5: Solve for x
    x = 14,399,930,603,346,074/138,292,500.20
  6. Step 6: Final answer
    x = 104,126,619.90

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1.5x scale

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.