Home / 12,127,856.40-18,192,076.20-3,608,470.80

Finding the Fourth Proportional to 12,127,856.40, 18,192,076.20 and 3,608,470.80

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Solution

The fourth proportional to 12,127,856.40, 18,192,076.20 and 3,608,470.80 is: 5,412,792.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,856.40 : 18,192,076.20 = 3,608,470.80 : x
  2. Step 2: Convert to fraction form
    12,127,856.40/18,192,076.20 = 3,608,470.80/x
  3. Step 3: Cross multiply
    12,127,856.40x = 18,192,076.20 × 3,608,470.80
  4. Step 4: Simplify right side
    12,127,856.40x = 65,645,575,759,074.95
  5. Step 5: Solve for x
    x = 65,645,575,759,074.95/12,127,856.40
  6. Step 6: Final answer
    x = 5,412,792.96

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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.