Home / 82,026,070.30-123,039,105.45-80,750,611.90

Finding the Fourth Proportional to 82,026,070.30, 123,039,105.45 and 80,750,611.90

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Solution

The fourth proportional to 82,026,070.30, 123,039,105.45 and 80,750,611.90 is: 121,125,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,026,070.30 : 123,039,105.45 = 80,750,611.90 : x
  2. Step 2: Convert to fraction form
    82,026,070.30/123,039,105.45 = 80,750,611.90/x
  3. Step 3: Cross multiply
    82,026,070.30x = 123,039,105.45 × 80,750,611.90
  4. Step 4: Simplify right side
    82,026,070.30x = 9,935,483,052,716,126
  5. Step 5: Solve for x
    x = 9,935,483,052,716,126/82,026,070.30
  6. Step 6: Final answer
    x = 121,125,917.85

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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.