Home / 82,615,821.40-123,923,732.10-73,687,612.60

Finding the Fourth Proportional to 82,615,821.40, 123,923,732.10 and 73,687,612.60

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Solution

The fourth proportional to 82,615,821.40, 123,923,732.10 and 73,687,612.60 is: 110,531,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,615,821.40 : 123,923,732.10 = 73,687,612.60 : x
  2. Step 2: Convert to fraction form
    82,615,821.40/123,923,732.10 = 73,687,612.60/x
  3. Step 3: Cross multiply
    82,615,821.40x = 123,923,732.10 × 73,687,612.60
  4. Step 4: Simplify right side
    82,615,821.40x = 9,131,643,962,930,984
  5. Step 5: Solve for x
    x = 9,131,643,962,930,984/82,615,821.40
  6. Step 6: Final answer
    x = 110,531,418.90

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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.