Home / 21,711,929.07-29,962,982.66-11,789,229.95

Finding the Fourth Proportional to 21,711,929.07, 29,962,982.66 and 11,789,229.95

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Solution

The fourth proportional to 21,711,929.07, 29,962,982.66 and 11,789,229.95 is: 16,269,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711,929.07 : 29,962,982.66 = 11,789,229.95 : x
  2. Step 2: Convert to fraction form
    21,711,929.07/29,962,982.66 = 11,789,229.95/x
  3. Step 3: Cross multiply
    21,711,929.07x = 29,962,982.66 × 11,789,229.95
  4. Step 4: Simplify right side
    21,711,929.07x = 353,240,492,357,841.62
  5. Step 5: Solve for x
    x = 353,240,492,357,841.62/21,711,929.07
  6. Step 6: Final answer
    x = 16,269,419.97

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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.