Home / 12,126,169.44-16,730,139.24-8,642,056.86

Finding the Fourth Proportional to 12,126,169.44, 16,730,139.24 and 8,642,056.86

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Solution

The fourth proportional to 12,126,169.44, 16,730,139.24 and 8,642,056.86 is: 11,923,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,169.44 : 16,730,139.24 = 8,642,056.86 : x
  2. Step 2: Convert to fraction form
    12,126,169.44/16,730,139.24 = 8,642,056.86/x
  3. Step 3: Cross multiply
    12,126,169.44x = 16,730,139.24 × 8,642,056.86
  4. Step 4: Simplify right side
    12,126,169.44x = 144,582,814,587,797.19
  5. Step 5: Solve for x
    x = 144,582,814,587,797.19/12,126,169.44
  6. Step 6: Final answer
    x = 11,923,205.87

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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.