Home / 80,458,321.80-120,687,482.70-29,342,008.20

Finding the Fourth Proportional to 80,458,321.80, 120,687,482.70 and 29,342,008.20

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Solution

The fourth proportional to 80,458,321.80, 120,687,482.70 and 29,342,008.20 is: 44,013,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,458,321.80 : 120,687,482.70 = 29,342,008.20 : x
  2. Step 2: Convert to fraction form
    80,458,321.80/120,687,482.70 = 29,342,008.20/x
  3. Step 3: Cross multiply
    80,458,321.80x = 120,687,482.70 × 29,342,008.20
  4. Step 4: Simplify right side
    80,458,321.80x = 3,541,213,107,020,758
  5. Step 5: Solve for x
    x = 3,541,213,107,020,758/80,458,321.80
  6. Step 6: Final answer
    x = 44,013,012.30

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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.