Home / 187,428,868.32-281,324,655.78-90,452,841.42

Finding the Fourth Proportional to 187,428,868.32, 281,324,655.78 and 90,452,841.42

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Solution

The fourth proportional to 187,428,868.32, 281,324,655.78 and 90,452,841.42 is: 135,766,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,428,868.32 : 281,324,655.78 = 90,452,841.42 : x
  2. Step 2: Convert to fraction form
    187,428,868.32/281,324,655.78 = 90,452,841.42/x
  3. Step 3: Cross multiply
    187,428,868.32x = 281,324,655.78 × 90,452,841.42
  4. Step 4: Simplify right side
    187,428,868.32x = 25,446,614,476,804,424
  5. Step 5: Solve for x
    x = 25,446,614,476,804,424/187,428,868.32
  6. Step 6: Final answer
    x = 135,766,782.91

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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.