Home / 91,381,148.10-126,098,488.67-50,128,040.48

Finding the Fourth Proportional to 91,381,148.10, 126,098,488.67 and 50,128,040.48

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Solution

The fourth proportional to 91,381,148.10, 126,098,488.67 and 50,128,040.48 is: 69,172,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,381,148.10 : 126,098,488.67 = 50,128,040.48 : x
  2. Step 2: Convert to fraction form
    91,381,148.10/126,098,488.67 = 50,128,040.48/x
  3. Step 3: Cross multiply
    91,381,148.10x = 126,098,488.67 × 50,128,040.48
  4. Step 4: Simplify right side
    91,381,148.10x = 6,321,070,143,635,449
  5. Step 5: Solve for x
    x = 6,321,070,143,635,449/91,381,148.10
  6. Step 6: Final answer
    x = 69,172,584.01

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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.