Home / 15,205,104.18-20,966,224.41-9,689,736.42

Finding the Fourth Proportional to 15,205,104.18, 20,966,224.41 and 9,689,736.42

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Solution

The fourth proportional to 15,205,104.18, 20,966,224.41 and 9,689,736.42 is: 13,361,117.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,205,104.18 : 20,966,224.41 = 9,689,736.42 : x
  2. Step 2: Convert to fraction form
    15,205,104.18/20,966,224.41 = 9,689,736.42/x
  3. Step 3: Cross multiply
    15,205,104.18x = 20,966,224.41 × 9,689,736.42
  4. Step 4: Simplify right side
    15,205,104.18x = 203,157,188,255,470
  5. Step 5: Solve for x
    x = 203,157,188,255,470/15,205,104.18
  6. Step 6: Final answer
    x = 13,361,117.81

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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.