Home / 20,932,457.20-31,375,357.80-8,148,713.20

Finding the Fourth Proportional to 20,932,457.20, 31,375,357.80 and 8,148,713.20

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Solution

The fourth proportional to 20,932,457.20, 31,375,357.80 and 8,148,713.20 is: 12,213,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932,457.20 : 31,375,357.80 = 8,148,713.20 : x
  2. Step 2: Convert to fraction form
    20,932,457.20/31,375,357.80 = 8,148,713.20/x
  3. Step 3: Cross multiply
    20,932,457.20x = 31,375,357.80 × 8,148,713.20
  4. Step 4: Simplify right side
    20,932,457.20x = 255,668,792,259,582.97
  5. Step 5: Solve for x
    x = 255,668,792,259,582.97/20,932,457.20
  6. Step 6: Final answer
    x = 12,213,988.54

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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.