Home / 21,398,983.52-29,530,593.78-12,231,823.12

Finding the Fourth Proportional to 21,398,983.52, 29,530,593.78 and 12,231,823.12

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Solution

The fourth proportional to 21,398,983.52, 29,530,593.78 and 12,231,823.12 is: 16,879,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398,983.52 : 29,530,593.78 = 12,231,823.12 : x
  2. Step 2: Convert to fraction form
    21,398,983.52/29,530,593.78 = 12,231,823.12/x
  3. Step 3: Cross multiply
    21,398,983.52x = 29,530,593.78 × 12,231,823.12
  4. Step 4: Simplify right side
    21,398,983.52x = 361,212,999,745,532.19
  5. Step 5: Solve for x
    x = 361,212,999,745,532.19/21,398,983.52
  6. Step 6: Final answer
    x = 16,879,913.92

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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.