Home / 18,120,986.61-25,007,262.46-9,861,397.02

Finding the Fourth Proportional to 18,120,986.61, 25,007,262.46 and 9,861,397.02

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Solution

The fourth proportional to 18,120,986.61, 25,007,262.46 and 9,861,397.02 is: 13,608,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,986.61 : 25,007,262.46 = 9,861,397.02 : x
  2. Step 2: Convert to fraction form
    18,120,986.61/25,007,262.46 = 9,861,397.02/x
  3. Step 3: Cross multiply
    18,120,986.61x = 25,007,262.46 × 9,861,397.02
  4. Step 4: Simplify right side
    18,120,986.61x = 246,606,543,476,748.38
  5. Step 5: Solve for x
    x = 246,606,543,476,748.38/18,120,986.61
  6. Step 6: Final answer
    x = 13,608,891.66

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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.