Home / 15,073,818.12-20,801,811.15-8,198,415

Finding the Fourth Proportional to 15,073,818.12, 20,801,811.15 and 8,198,415

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Solution

The fourth proportional to 15,073,818.12, 20,801,811.15 and 8,198,415 is: 11,313,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073,818.12 : 20,801,811.15 = 8,198,415 : x
  2. Step 2: Convert to fraction form
    15,073,818.12/20,801,811.15 = 8,198,415/x
  3. Step 3: Cross multiply
    15,073,818.12x = 20,801,811.15 × 8,198,415
  4. Step 4: Simplify right side
    15,073,818.12x = 170,541,880,559,327.25
  5. Step 5: Solve for x
    x = 170,541,880,559,327.25/15,073,818.12
  6. Step 6: Final answer
    x = 11,313,781.23

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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.