Home / 123,288,977.74-170,074,283.88-76,231,008.22

Finding the Fourth Proportional to 123,288,977.74, 170,074,283.88 and 76,231,008.22

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Solution

The fourth proportional to 123,288,977.74, 170,074,283.88 and 76,231,008.22 is: 105,158,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,288,977.74 : 170,074,283.88 = 76,231,008.22 : x
  2. Step 2: Convert to fraction form
    123,288,977.74/170,074,283.88 = 76,231,008.22/x
  3. Step 3: Cross multiply
    123,288,977.74x = 170,074,283.88 × 76,231,008.22
  4. Step 4: Simplify right side
    123,288,977.74x = 12,964,934,132,466,892
  5. Step 5: Solve for x
    x = 12,964,934,132,466,892/123,288,977.74
  6. Step 6: Final answer
    x = 105,158,906.90

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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.