Home / 12,696,819.69-17,522,691.78-7,191,173.99

Finding the Fourth Proportional to 12,696,819.69, 17,522,691.78 and 7,191,173.99

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Solution

The fourth proportional to 12,696,819.69, 17,522,691.78 and 7,191,173.99 is: 9,924,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696,819.69 : 17,522,691.78 = 7,191,173.99 : x
  2. Step 2: Convert to fraction form
    12,696,819.69/17,522,691.78 = 7,191,173.99/x
  3. Step 3: Cross multiply
    12,696,819.69x = 17,522,691.78 × 7,191,173.99
  4. Step 4: Simplify right side
    12,696,819.69x = 126,008,725,275,509.36
  5. Step 5: Solve for x
    x = 126,008,725,275,509.36/12,696,819.69
  6. Step 6: Final answer
    x = 9,924,432.13

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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.