Home / 18,475,719.86-25,495,397.91-10,215,133.80

Finding the Fourth Proportional to 18,475,719.86, 25,495,397.91 and 10,215,133.80

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Solution

The fourth proportional to 18,475,719.86, 25,495,397.91 and 10,215,133.80 is: 14,096,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475,719.86 : 25,495,397.91 = 10,215,133.80 : x
  2. Step 2: Convert to fraction form
    18,475,719.86/25,495,397.91 = 10,215,133.80/x
  3. Step 3: Cross multiply
    18,475,719.86x = 25,495,397.91 × 10,215,133.80
  4. Step 4: Simplify right side
    18,475,719.86x = 260,438,900,934,890.38
  5. Step 5: Solve for x
    x = 260,438,900,934,890.38/18,475,719.86
  6. Step 6: Final answer
    x = 14,096,278.95

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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.