Home / 87,469,022.52-120,706,533.36-47,776,578.57

Finding the Fourth Proportional to 87,469,022.52, 120,706,533.36 and 47,776,578.57

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Solution

The fourth proportional to 87,469,022.52, 120,706,533.36 and 47,776,578.57 is: 65,931,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,469,022.52 : 120,706,533.36 = 47,776,578.57 : x
  2. Step 2: Convert to fraction form
    87,469,022.52/120,706,533.36 = 47,776,578.57/x
  3. Step 3: Cross multiply
    87,469,022.52x = 120,706,533.36 × 47,776,578.57
  4. Step 4: Simplify right side
    87,469,022.52x = 5,766,945,174,986,366
  5. Step 5: Solve for x
    x = 5,766,945,174,986,366/87,469,022.52
  6. Step 6: Final answer
    x = 65,931,286.40

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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.