Home / 80,676,003.20-120,869,662.80-49,069,479.20

Finding the Fourth Proportional to 80,676,003.20, 120,869,662.80 and 49,069,479.20

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Solution

The fourth proportional to 80,676,003.20, 120,869,662.80 and 49,069,479.20 is: 73,516,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,676,003.20 : 120,869,662.80 = 49,069,479.20 : x
  2. Step 2: Convert to fraction form
    80,676,003.20/120,869,662.80 = 49,069,479.20/x
  3. Step 3: Cross multiply
    80,676,003.20x = 120,869,662.80 × 49,069,479.20
  4. Step 4: Simplify right side
    80,676,003.20x = 5,931,011,404,675,614
  5. Step 5: Solve for x
    x = 5,931,011,404,675,614/80,676,003.20
  6. Step 6: Final answer
    x = 73,516,425.82

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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.