Home / 20,111,781.90-30,167,672.85-18,537,141.90

Finding the Fourth Proportional to 20,111,781.90, 30,167,672.85 and 18,537,141.90

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Solution

The fourth proportional to 20,111,781.90, 30,167,672.85 and 18,537,141.90 is: 27,805,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,781.90 : 30,167,672.85 = 18,537,141.90 : x
  2. Step 2: Convert to fraction form
    20,111,781.90/30,167,672.85 = 18,537,141.90/x
  3. Step 3: Cross multiply
    20,111,781.90x = 30,167,672.85 × 18,537,141.90
  4. Step 4: Simplify right side
    20,111,781.90x = 559,222,432,413,227.38
  5. Step 5: Solve for x
    x = 559,222,432,413,227.38/20,111,781.90
  6. Step 6: Final answer
    x = 27,805,712.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.