Home / 18,722,078.60-28,062,122.70-9,620,659.40

Finding the Fourth Proportional to 18,722,078.60, 28,062,122.70 and 9,620,659.40

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Solution

The fourth proportional to 18,722,078.60, 28,062,122.70 and 9,620,659.40 is: 14,420,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,078.60 : 28,062,122.70 = 9,620,659.40 : x
  2. Step 2: Convert to fraction form
    18,722,078.60/28,062,122.70 = 9,620,659.40/x
  3. Step 3: Cross multiply
    18,722,078.60x = 28,062,122.70 × 9,620,659.40
  4. Step 4: Simplify right side
    18,722,078.60x = 269,976,124,537,708.38
  5. Step 5: Solve for x
    x = 269,976,124,537,708.38/18,722,078.60
  6. Step 6: Final answer
    x = 14,420,200.36

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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.