Home / 18,781,345.20-28,172,017.80-18,529,402.80

Finding the Fourth Proportional to 18,781,345.20, 28,172,017.80 and 18,529,402.80

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Solution

The fourth proportional to 18,781,345.20, 28,172,017.80 and 18,529,402.80 is: 27,794,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,345.20 : 28,172,017.80 = 18,529,402.80 : x
  2. Step 2: Convert to fraction form
    18,781,345.20/28,172,017.80 = 18,529,402.80/x
  3. Step 3: Cross multiply
    18,781,345.20x = 28,172,017.80 × 18,529,402.80
  4. Step 4: Simplify right side
    18,781,345.20x = 522,010,665,504,969.88
  5. Step 5: Solve for x
    x = 522,010,665,504,969.88/18,781,345.20
  6. Step 6: Final answer
    x = 27,794,104.20

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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.