Home / 13,897,321.60-20,859,979.20-6,714,630.40

Finding the Fourth Proportional to 13,897,321.60, 20,859,979.20 and 6,714,630.40

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Solution

The fourth proportional to 13,897,321.60, 20,859,979.20 and 6,714,630.40 is: 10,078,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897,321.60 : 20,859,979.20 = 6,714,630.40 : x
  2. Step 2: Convert to fraction form
    13,897,321.60/20,859,979.20 = 6,714,630.40/x
  3. Step 3: Cross multiply
    13,897,321.60x = 20,859,979.20 × 6,714,630.40
  4. Step 4: Simplify right side
    13,897,321.60x = 140,067,050,479,687.69
  5. Step 5: Solve for x
    x = 140,067,050,479,687.69/13,897,321.60
  6. Step 6: Final answer
    x = 10,078,708.29

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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.