Home / 80,557,300.20-120,552,515.10-73,754,855.40

Finding the Fourth Proportional to 80,557,300.20, 120,552,515.10 and 73,754,855.40

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Solution

The fourth proportional to 80,557,300.20, 120,552,515.10 and 73,754,855.40 is: 110,372,781.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557,300.20 : 120,552,515.10 = 73,754,855.40 : x
  2. Step 2: Convert to fraction form
    80,557,300.20/120,552,515.10 = 73,754,855.40/x
  3. Step 3: Cross multiply
    80,557,300.20x = 120,552,515.10 × 73,754,855.40
  4. Step 4: Simplify right side
    80,557,300.20x = 8,891,333,319,306,817
  5. Step 5: Solve for x
    x = 8,891,333,319,306,817/80,557,300.20
  6. Step 6: Final answer
    x = 110,372,781.82

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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.