Home / 80,474,143.80-120,711,215.70-29,357,830.20

Finding the Fourth Proportional to 80,474,143.80, 120,711,215.70 and 29,357,830.20

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Solution

The fourth proportional to 80,474,143.80, 120,711,215.70 and 29,357,830.20 is: 44,036,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,474,143.80 : 120,711,215.70 = 29,357,830.20 : x
  2. Step 2: Convert to fraction form
    80,474,143.80/120,711,215.70 = 29,357,830.20/x
  3. Step 3: Cross multiply
    80,474,143.80x = 120,711,215.70 × 29,357,830.20
  4. Step 4: Simplify right side
    80,474,143.80x = 3,543,819,373,756,174
  5. Step 5: Solve for x
    x = 3,543,819,373,756,174/80,474,143.80
  6. Step 6: Final answer
    x = 44,036,745.30

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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.