Home / 82,476,110.10-123,714,165.15-81,972,225.30

Finding the Fourth Proportional to 82,476,110.10, 123,714,165.15 and 81,972,225.30

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Solution

The fourth proportional to 82,476,110.10, 123,714,165.15 and 81,972,225.30 is: 122,958,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,476,110.10 : 123,714,165.15 = 81,972,225.30 : x
  2. Step 2: Convert to fraction form
    82,476,110.10/123,714,165.15 = 81,972,225.30/x
  3. Step 3: Cross multiply
    82,476,110.10x = 123,714,165.15 × 81,972,225.30
  4. Step 4: Simplify right side
    82,476,110.10x = 10,141,125,418,477,208
  5. Step 5: Solve for x
    x = 10,141,125,418,477,208/82,476,110.10
  6. Step 6: Final answer
    x = 122,958,337.95

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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.