Home / 82,578,171.80-113,965,138.39-45,415,000.90

Finding the Fourth Proportional to 82,578,171.80, 113,965,138.39 and 45,415,000.90

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Solution

The fourth proportional to 82,578,171.80, 113,965,138.39 and 45,415,000.90 is: 62,676,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,578,171.80 : 113,965,138.39 = 45,415,000.90 : x
  2. Step 2: Convert to fraction form
    82,578,171.80/113,965,138.39 = 45,415,000.90/x
  3. Step 3: Cross multiply
    82,578,171.80x = 113,965,138.39 × 45,415,000.90
  4. Step 4: Simplify right side
    82,578,171.80x = 5,175,726,862,471,920
  5. Step 5: Solve for x
    x = 5,175,726,862,471,920/82,578,171.80
  6. Step 6: Final answer
    x = 62,676,694.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.