Home / 18,144,961.20-27,217,441.80-13,665,985.20

Finding the Fourth Proportional to 18,144,961.20, 27,217,441.80 and 13,665,985.20

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Solution

The fourth proportional to 18,144,961.20, 27,217,441.80 and 13,665,985.20 is: 20,498,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,961.20 : 27,217,441.80 = 13,665,985.20 : x
  2. Step 2: Convert to fraction form
    18,144,961.20/27,217,441.80 = 13,665,985.20/x
  3. Step 3: Cross multiply
    18,144,961.20x = 27,217,441.80 × 13,665,985.20
  4. Step 4: Simplify right side
    18,144,961.20x = 371,953,156,820,661.38
  5. Step 5: Solve for x
    x = 371,953,156,820,661.38/18,144,961.20
  6. Step 6: Final answer
    x = 20,498,977.80

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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.