Home / 12,145,836.75-16,761,255.51-6,639,233.42

Finding the Fourth Proportional to 12,145,836.75, 16,761,255.51 and 6,639,233.42

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Solution

The fourth proportional to 12,145,836.75, 16,761,255.51 and 6,639,233.42 is: 9,162,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,836.75 : 16,761,255.51 = 6,639,233.42 : x
  2. Step 2: Convert to fraction form
    12,145,836.75/16,761,255.51 = 6,639,233.42/x
  3. Step 3: Cross multiply
    12,145,836.75x = 16,761,255.51 × 6,639,233.42
  4. Step 4: Simplify right side
    12,145,836.75x = 111,281,887,659,344.86
  5. Step 5: Solve for x
    x = 111,281,887,659,344.86/12,145,836.75
  6. Step 6: Final answer
    x = 9,162,142.55

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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.