Home / 18,442,049.88-25,426,366.04-15,122,110.96

Finding the Fourth Proportional to 18,442,049.88, 25,426,366.04 and 15,122,110.96

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Solution

The fourth proportional to 18,442,049.88, 25,426,366.04 and 15,122,110.96 is: 20,849,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442,049.88 : 25,426,366.04 = 15,122,110.96 : x
  2. Step 2: Convert to fraction form
    18,442,049.88/25,426,366.04 = 15,122,110.96/x
  3. Step 3: Cross multiply
    18,442,049.88x = 25,426,366.04 × 15,122,110.96
  4. Step 4: Simplify right side
    18,442,049.88x = 384,500,328,566,455.81
  5. Step 5: Solve for x
    x = 384,500,328,566,455.81/18,442,049.88
  6. Step 6: Final answer
    x = 20,849,110.11

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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.