Home / 80,448,562.60-120,672,843.90-74,708,999.80

Finding the Fourth Proportional to 80,448,562.60, 120,672,843.90 and 74,708,999.80

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Solution

The fourth proportional to 80,448,562.60, 120,672,843.90 and 74,708,999.80 is: 112,063,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,448,562.60 : 120,672,843.90 = 74,708,999.80 : x
  2. Step 2: Convert to fraction form
    80,448,562.60/120,672,843.90 = 74,708,999.80/x
  3. Step 3: Cross multiply
    80,448,562.60x = 120,672,843.90 × 74,708,999.80
  4. Step 4: Simplify right side
    80,448,562.60x = 9,015,347,470,790,532
  5. Step 5: Solve for x
    x = 9,015,347,470,790,532/80,448,562.60
  6. Step 6: Final answer
    x = 112,063,499.70

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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.