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Finding the Fourth Proportional to 66,766,873.20, 100,150,309.80 and 60,708,445.80

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Solution

The fourth proportional to 66,766,873.20, 100,150,309.80 and 60,708,445.80 is: 91,062,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,766,873.20 : 100,150,309.80 = 60,708,445.80 : x
  2. Step 2: Convert to fraction form
    66,766,873.20/100,150,309.80 = 60,708,445.80/x
  3. Step 3: Cross multiply
    66,766,873.20x = 100,150,309.80 × 60,708,445.80
  4. Step 4: Simplify right side
    66,766,873.20x = 6,079,969,654,346,508
  5. Step 5: Solve for x
    x = 6,079,969,654,346,508/66,766,873.20
  6. Step 6: Final answer
    x = 91,062,668.70

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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.