Home / 21,478,414.26-29,635,026.78-12,658,228.26

Finding the Fourth Proportional to 21,478,414.26, 29,635,026.78 and 12,658,228.26

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Solution

The fourth proportional to 21,478,414.26, 29,635,026.78 and 12,658,228.26 is: 17,465,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478,414.26 : 29,635,026.78 = 12,658,228.26 : x
  2. Step 2: Convert to fraction form
    21,478,414.26/29,635,026.78 = 12,658,228.26/x
  3. Step 3: Cross multiply
    21,478,414.26x = 29,635,026.78 × 12,658,228.26
  4. Step 4: Simplify right side
    21,478,414.26x = 375,126,933,472,452.81
  5. Step 5: Solve for x
    x = 375,126,933,472,452.81/21,478,414.26
  6. Step 6: Final answer
    x = 17,465,299.30

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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.