Home / 13,668,545.60-20,488,821.60-7,985,844.80

Finding the Fourth Proportional to 13,668,545.60, 20,488,821.60 and 7,985,844.80

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Solution

The fourth proportional to 13,668,545.60, 20,488,821.60 and 7,985,844.80 is: 11,970,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668,545.60 : 20,488,821.60 = 7,985,844.80 : x
  2. Step 2: Convert to fraction form
    13,668,545.60/20,488,821.60 = 7,985,844.80/x
  3. Step 3: Cross multiply
    13,668,545.60x = 20,488,821.60 × 7,985,844.80
  4. Step 4: Simplify right side
    13,668,545.60x = 163,620,549,432,487.69
  5. Step 5: Solve for x
    x = 163,620,549,432,487.69/13,668,545.60
  6. Step 6: Final answer
    x = 11,970,589.57

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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.