Home / 13,331,773.38-18,397,870.53-7,220,201.88

Finding the Fourth Proportional to 13,331,773.38, 18,397,870.53 and 7,220,201.88

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Solution

The fourth proportional to 13,331,773.38, 18,397,870.53 and 7,220,201.88 is: 9,963,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,773.38 : 18,397,870.53 = 7,220,201.88 : x
  2. Step 2: Convert to fraction form
    13,331,773.38/18,397,870.53 = 7,220,201.88/x
  3. Step 3: Cross multiply
    13,331,773.38x = 18,397,870.53 × 7,220,201.88
  4. Step 4: Simplify right side
    13,331,773.38x = 132,836,339,388,702.61
  5. Step 5: Solve for x
    x = 132,836,339,388,702.61/13,331,773.38
  6. Step 6: Final answer
    x = 9,963,891.19

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1.5x scale

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.