Home / 12,127,470.30-18,200,062.80-8,540,243.55

Finding the Fourth Proportional to 12,127,470.30, 18,200,062.80 and 8,540,243.55

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Solution

The fourth proportional to 12,127,470.30, 18,200,062.80 and 8,540,243.55 is: 12,816,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,470.30 : 18,200,062.80 = 8,540,243.55 : x
  2. Step 2: Convert to fraction form
    12,127,470.30/18,200,062.80 = 8,540,243.55/x
  3. Step 3: Cross multiply
    12,127,470.30x = 18,200,062.80 × 8,540,243.55
  4. Step 4: Simplify right side
    12,127,470.30x = 155,432,968,937,294.97
  5. Step 5: Solve for x
    x = 155,432,968,937,294.97/12,127,470.30
  6. Step 6: Final answer
    x = 12,816,602.73

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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.