Home / 80,834,500.20-121,251,750.30-39,913,543.20

Finding the Fourth Proportional to 80,834,500.20, 121,251,750.30 and 39,913,543.20

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Solution

The fourth proportional to 80,834,500.20, 121,251,750.30 and 39,913,543.20 is: 59,870,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,834,500.20 : 121,251,750.30 = 39,913,543.20 : x
  2. Step 2: Convert to fraction form
    80,834,500.20/121,251,750.30 = 39,913,543.20/x
  3. Step 3: Cross multiply
    80,834,500.20x = 121,251,750.30 × 39,913,543.20
  4. Step 4: Simplify right side
    80,834,500.20x = 4,839,586,973,674,663
  5. Step 5: Solve for x
    x = 4,839,586,973,674,663/80,834,500.20
  6. Step 6: Final answer
    x = 59,870,314.80

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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.