Home / 18,255,920.80-25,193,079.12-9,995,833.12

Finding the Fourth Proportional to 18,255,920.80, 25,193,079.12 and 9,995,833.12

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Solution

The fourth proportional to 18,255,920.80, 25,193,079.12 and 9,995,833.12 is: 13,794,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255,920.80 : 25,193,079.12 = 9,995,833.12 : x
  2. Step 2: Convert to fraction form
    18,255,920.80/25,193,079.12 = 9,995,833.12/x
  3. Step 3: Cross multiply
    18,255,920.80x = 25,193,079.12 × 9,995,833.12
  4. Step 4: Simplify right side
    18,255,920.80x = 251,825,814,662,476.44
  5. Step 5: Solve for x
    x = 251,825,814,662,476.44/18,255,920.80
  6. Step 6: Final answer
    x = 13,794,199.56

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1.5x scale

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.