Home / 21,456,085.60-32,159,245.20-8,668,194.40

Finding the Fourth Proportional to 21,456,085.60, 32,159,245.20 and 8,668,194.40

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Solution

The fourth proportional to 21,456,085.60, 32,159,245.20 and 8,668,194.40 is: 12,992,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,085.60 : 32,159,245.20 = 8,668,194.40 : x
  2. Step 2: Convert to fraction form
    21,456,085.60/32,159,245.20 = 8,668,194.40/x
  3. Step 3: Cross multiply
    21,456,085.60x = 32,159,245.20 × 8,668,194.40
  4. Step 4: Simplify right side
    21,456,085.60x = 278,762,589,150,866.88
  5. Step 5: Solve for x
    x = 278,762,589,150,866.88/21,456,085.60
  6. Step 6: Final answer
    x = 12,992,238.86

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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.