Home / 18,644,143.79-25,724,381.10-12,278,341.29

Finding the Fourth Proportional to 18,644,143.79, 25,724,381.10 and 12,278,341.29

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Solution

The fourth proportional to 18,644,143.79, 25,724,381.10 and 12,278,341.29 is: 16,941,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644,143.79 : 25,724,381.10 = 12,278,341.29 : x
  2. Step 2: Convert to fraction form
    18,644,143.79/25,724,381.10 = 12,278,341.29/x
  3. Step 3: Cross multiply
    18,644,143.79x = 25,724,381.10 × 12,278,341.29
  4. Step 4: Simplify right side
    18,644,143.79x = 315,852,730,522,251.62
  5. Step 5: Solve for x
    x = 315,852,730,522,251.62/18,644,143.79
  6. Step 6: Final answer
    x = 16,941,122.86

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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.