Home / 80,448,549.60-120,672,824.40-74,708,986.80

Finding the Fourth Proportional to 80,448,549.60, 120,672,824.40 and 74,708,986.80

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Solution

The fourth proportional to 80,448,549.60, 120,672,824.40 and 74,708,986.80 is: 112,063,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,448,549.60 : 120,672,824.40 = 74,708,986.80 : x
  2. Step 2: Convert to fraction form
    80,448,549.60/120,672,824.40 = 74,708,986.80/x
  3. Step 3: Cross multiply
    80,448,549.60x = 120,672,824.40 × 74,708,986.80
  4. Step 4: Simplify right side
    80,448,549.60x = 9,015,344,445,218,318
  5. Step 5: Solve for x
    x = 9,015,344,445,218,318/80,448,549.60
  6. Step 6: Final answer
    x = 112,063,480.20

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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.