Home / 21,204,178.75-29,253,352.16-12,261,636.50

Finding the Fourth Proportional to 21,204,178.75, 29,253,352.16 and 12,261,636.50

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Solution

The fourth proportional to 21,204,178.75, 29,253,352.16 and 12,261,636.50 is: 16,916,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204,178.75 : 29,253,352.16 = 12,261,636.50 : x
  2. Step 2: Convert to fraction form
    21,204,178.75/29,253,352.16 = 12,261,636.50/x
  3. Step 3: Cross multiply
    21,204,178.75x = 29,253,352.16 × 12,261,636.50
  4. Step 4: Simplify right side
    21,204,178.75x = 358,693,970,531,101.69
  5. Step 5: Solve for x
    x = 358,693,970,531,101.69/21,204,178.75
  6. Step 6: Final answer
    x = 16,916,192.55

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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.