Home / 126,182,307.90-189,273,461.85-54,378,723.90

Finding the Fourth Proportional to 126,182,307.90, 189,273,461.85 and 54,378,723.90

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Solution

The fourth proportional to 126,182,307.90, 189,273,461.85 and 54,378,723.90 is: 81,568,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,182,307.90 : 189,273,461.85 = 54,378,723.90 : x
  2. Step 2: Convert to fraction form
    126,182,307.90/189,273,461.85 = 54,378,723.90/x
  3. Step 3: Cross multiply
    126,182,307.90x = 189,273,461.85 × 54,378,723.90
  4. Step 4: Simplify right side
    126,182,307.90x = 10,292,449,323,538,332
  5. Step 5: Solve for x
    x = 10,292,449,323,538,332/126,182,307.90
  6. Step 6: Final answer
    x = 81,568,085.85

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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.