Home / 18,389,543.10-27,584,314.65-15,519,761.70

Finding the Fourth Proportional to 18,389,543.10, 27,584,314.65 and 15,519,761.70

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Solution

The fourth proportional to 18,389,543.10, 27,584,314.65 and 15,519,761.70 is: 23,279,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,543.10 : 27,584,314.65 = 15,519,761.70 : x
  2. Step 2: Convert to fraction form
    18,389,543.10/27,584,314.65 = 15,519,761.70/x
  3. Step 3: Cross multiply
    18,389,543.10x = 27,584,314.65 × 15,519,761.70
  4. Step 4: Simplify right side
    18,389,543.10x = 428,101,990,025,818.88
  5. Step 5: Solve for x
    x = 428,101,990,025,818.88/18,389,543.10
  6. Step 6: Final answer
    x = 23,279,642.55

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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.