Home / 18,602,515.31-25,663,186.08-10,864,143.86

Finding the Fourth Proportional to 18,602,515.31, 25,663,186.08 and 10,864,143.86

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Solution

The fourth proportional to 18,602,515.31, 25,663,186.08 and 10,864,143.86 is: 14,987,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602,515.31 : 25,663,186.08 = 10,864,143.86 : x
  2. Step 2: Convert to fraction form
    18,602,515.31/25,663,186.08 = 10,864,143.86/x
  3. Step 3: Cross multiply
    18,602,515.31x = 25,663,186.08 × 10,864,143.86
  4. Step 4: Simplify right side
    18,602,515.31x = 278,808,545,350,753.53
  5. Step 5: Solve for x
    x = 278,808,545,350,753.53/18,602,515.31
  6. Step 6: Final answer
    x = 14,987,679.93

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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.