Home / 18,302,211.16-25,234,071.15-13,398,920.71

Finding the Fourth Proportional to 18,302,211.16, 25,234,071.15 and 13,398,920.71

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Solution

The fourth proportional to 18,302,211.16, 25,234,071.15 and 13,398,920.71 is: 18,473,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302,211.16 : 25,234,071.15 = 13,398,920.71 : x
  2. Step 2: Convert to fraction form
    18,302,211.16/25,234,071.15 = 13,398,920.71/x
  3. Step 3: Cross multiply
    18,302,211.16x = 25,234,071.15 × 13,398,920.71
  4. Step 4: Simplify right side
    18,302,211.16x = 338,109,318,529,348.50
  5. Step 5: Solve for x
    x = 338,109,318,529,348.50/18,302,211.16
  6. Step 6: Final answer
    x = 18,473,686.90

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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.