Home / 18,126,713.61-25,015,415.72-12,837,883.61

Finding the Fourth Proportional to 18,126,713.61, 25,015,415.72 and 12,837,883.61

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Solution

The fourth proportional to 18,126,713.61, 25,015,415.72 and 12,837,883.61 is: 17,716,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126,713.61 : 25,015,415.72 = 12,837,883.61 : x
  2. Step 2: Convert to fraction form
    18,126,713.61/25,015,415.72 = 12,837,883.61/x
  3. Step 3: Cross multiply
    18,126,713.61x = 25,015,415.72 × 12,837,883.61
  4. Step 4: Simplify right side
    18,126,713.61x = 321,144,995,279,857.88
  5. Step 5: Solve for x
    x = 321,144,995,279,857.88/18,126,713.61
  6. Step 6: Final answer
    x = 17,716,669.56

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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.