Home / 80,669,167.20-120,859,408.80-49,062,643.20

Finding the Fourth Proportional to 80,669,167.20, 120,859,408.80 and 49,062,643.20

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Solution

The fourth proportional to 80,669,167.20, 120,859,408.80 and 49,062,643.20 is: 73,506,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,669,167.20 : 120,859,408.80 = 49,062,643.20 : x
  2. Step 2: Convert to fraction form
    80,669,167.20/120,859,408.80 = 49,062,643.20/x
  3. Step 3: Cross multiply
    80,669,167.20x = 120,859,408.80 × 49,062,643.20
  4. Step 4: Simplify right side
    80,669,167.20x = 5,929,682,051,317,340
  5. Step 5: Solve for x
    x = 5,929,682,051,317,340/80,669,167.20
  6. Step 6: Final answer
    x = 73,506,176.61

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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.