Home / 21,085,877.12-29,098,578.57-11,793,606.50

Finding the Fourth Proportional to 21,085,877.12, 29,098,578.57 and 11,793,606.50

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Solution

The fourth proportional to 21,085,877.12, 29,098,578.57 and 11,793,606.50 is: 16,275,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085,877.12 : 29,098,578.57 = 11,793,606.50 : x
  2. Step 2: Convert to fraction form
    21,085,877.12/29,098,578.57 = 11,793,606.50/x
  3. Step 3: Cross multiply
    21,085,877.12x = 29,098,578.57 × 11,793,606.50
  4. Step 4: Simplify right side
    21,085,877.12x = 343,177,185,363,912.69
  5. Step 5: Solve for x
    x = 343,177,185,363,912.69/21,085,877.12
  6. Step 6: Final answer
    x = 16,275,215.08

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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.