Home / 80,572,444.20-120,858,666.30-69,612,949.80

Finding the Fourth Proportional to 80,572,444.20, 120,858,666.30 and 69,612,949.80

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Solution

The fourth proportional to 80,572,444.20, 120,858,666.30 and 69,612,949.80 is: 104,419,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,572,444.20 : 120,858,666.30 = 69,612,949.80 : x
  2. Step 2: Convert to fraction form
    80,572,444.20/120,858,666.30 = 69,612,949.80/x
  3. Step 3: Cross multiply
    80,572,444.20x = 120,858,666.30 × 69,612,949.80
  4. Step 4: Simplify right side
    80,572,444.20x = 8,413,328,270,036,851
  5. Step 5: Solve for x
    x = 8,413,328,270,036,851/80,572,444.20
  6. Step 6: Final answer
    x = 104,419,424.70

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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.