Home / 80,745,363.20-120,973,702.80-49,138,839.20

Finding the Fourth Proportional to 80,745,363.20, 120,973,702.80 and 49,138,839.20

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Solution

The fourth proportional to 80,745,363.20, 120,973,702.80 and 49,138,839.20 is: 73,620,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,745,363.20 : 120,973,702.80 = 49,138,839.20 : x
  2. Step 2: Convert to fraction form
    80,745,363.20/120,973,702.80 = 49,138,839.20/x
  3. Step 3: Cross multiply
    80,745,363.20x = 120,973,702.80 × 49,138,839.20
  4. Step 4: Simplify right side
    80,745,363.20x = 5,944,507,329,317,790
  5. Step 5: Solve for x
    x = 5,944,507,329,317,790/80,745,363.20
  6. Step 6: Final answer
    x = 73,620,417.24

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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.