Home / 21,899,688.76-30,221,766.12-12,110,791.80

Finding the Fourth Proportional to 21,899,688.76, 30,221,766.12 and 12,110,791.80

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Solution

The fourth proportional to 21,899,688.76, 30,221,766.12 and 12,110,791.80 is: 16,713,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899,688.76 : 30,221,766.12 = 12,110,791.80 : x
  2. Step 2: Convert to fraction form
    21,899,688.76/30,221,766.12 = 12,110,791.80/x
  3. Step 3: Cross multiply
    21,899,688.76x = 30,221,766.12 × 12,110,791.80
  4. Step 4: Simplify right side
    21,899,688.76x = 366,009,517,307,613.88
  5. Step 5: Solve for x
    x = 366,009,517,307,613.88/21,899,688.76
  6. Step 6: Final answer
    x = 16,713,000.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.