Home / 82,657,400.70-123,986,101.05-72,579,704.70

Finding the Fourth Proportional to 82,657,400.70, 123,986,101.05 and 72,579,704.70

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Solution

The fourth proportional to 82,657,400.70, 123,986,101.05 and 72,579,704.70 is: 108,869,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,657,400.70 : 123,986,101.05 = 72,579,704.70 : x
  2. Step 2: Convert to fraction form
    82,657,400.70/123,986,101.05 = 72,579,704.70/x
  3. Step 3: Cross multiply
    82,657,400.70x = 123,986,101.05 × 72,579,704.70
  4. Step 4: Simplify right side
    82,657,400.70x = 8,998,874,601,113,360
  5. Step 5: Solve for x
    x = 8,998,874,601,113,360/82,657,400.70
  6. Step 6: Final answer
    x = 108,869,557.05

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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.