Home / 126,123,078.75-189,093,822.08-77,500,475.49

Finding the Fourth Proportional to 126,123,078.75, 189,093,822.08 and 77,500,475.49

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Solution

The fourth proportional to 126,123,078.75, 189,093,822.08 and 77,500,475.49 is: 116,194,920.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123,078.75 : 189,093,822.08 = 77,500,475.49 : x
  2. Step 2: Convert to fraction form
    126,123,078.75/189,093,822.08 = 77,500,475.49/x
  3. Step 3: Cross multiply
    126,123,078.75x = 189,093,822.08 × 77,500,475.49
  4. Step 4: Simplify right side
    126,123,078.75x = 14,654,861,124,178,614
  5. Step 5: Solve for x
    x = 14,654,861,124,178,614/126,123,078.75
  6. Step 6: Final answer
    x = 116,194,920.63

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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.