Home / 21,456,039.60-32,159,176.20-8,668,148.40

Finding the Fourth Proportional to 21,456,039.60, 32,159,176.20 and 8,668,148.40

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Solution

The fourth proportional to 21,456,039.60, 32,159,176.20 and 8,668,148.40 is: 12,992,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,039.60 : 32,159,176.20 = 8,668,148.40 : x
  2. Step 2: Convert to fraction form
    21,456,039.60/32,159,176.20 = 8,668,148.40/x
  3. Step 3: Cross multiply
    21,456,039.60x = 32,159,176.20 × 8,668,148.40
  4. Step 4: Simplify right side
    21,456,039.60x = 278,760,511,723,348.09
  5. Step 5: Solve for x
    x = 278,760,511,723,348.09/21,456,039.60
  6. Step 6: Final answer
    x = 12,992,169.89

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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.