Home / 80,142,177.80-120,213,266.70-54,633,009.80

Finding the Fourth Proportional to 80,142,177.80, 120,213,266.70 and 54,633,009.80

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Solution

The fourth proportional to 80,142,177.80, 120,213,266.70 and 54,633,009.80 is: 81,949,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142,177.80 : 120,213,266.70 = 54,633,009.80 : x
  2. Step 2: Convert to fraction form
    80,142,177.80/120,213,266.70 = 54,633,009.80/x
  3. Step 3: Cross multiply
    80,142,177.80x = 120,213,266.70 × 54,633,009.80
  4. Step 4: Simplify right side
    80,142,177.80x = 6,567,612,577,711,113
  5. Step 5: Solve for x
    x = 6,567,612,577,711,113/80,142,177.80
  6. Step 6: Final answer
    x = 81,949,514.70

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Similar ratio
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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.