Home / 13,664,430.60-20,482,649.10-7,981,729.80

Finding the Fourth Proportional to 13,664,430.60, 20,482,649.10 and 7,981,729.80

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Solution

The fourth proportional to 13,664,430.60, 20,482,649.10 and 7,981,729.80 is: 11,964,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664,430.60 : 20,482,649.10 = 7,981,729.80 : x
  2. Step 2: Convert to fraction form
    13,664,430.60/20,482,649.10 = 7,981,729.80/x
  3. Step 3: Cross multiply
    13,664,430.60x = 20,482,649.10 × 7,981,729.80
  4. Step 4: Simplify right side
    13,664,430.60x = 163,486,970,704,413.19
  5. Step 5: Solve for x
    x = 163,486,970,704,413.19/13,664,430.60
  6. Step 6: Final answer
    x = 11,964,418.83

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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.