Home / 90,804,708.18-125,313,144.45-49,554,257.70

Finding the Fourth Proportional to 90,804,708.18, 125,313,144.45 and 49,554,257.70

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Solution

The fourth proportional to 90,804,708.18, 125,313,144.45 and 49,554,257.70 is: 68,386,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804,708.18 : 125,313,144.45 = 49,554,257.70 : x
  2. Step 2: Convert to fraction form
    90,804,708.18/125,313,144.45 = 49,554,257.70/x
  3. Step 3: Cross multiply
    90,804,708.18x = 125,313,144.45 × 49,554,257.70
  4. Step 4: Simplify right side
    90,804,708.18x = 6,209,799,853,272,625
  5. Step 5: Solve for x
    x = 6,209,799,853,272,625/90,804,708.18
  6. Step 6: Final answer
    x = 68,386,320.24

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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.