Home / 12,457,694.70-18,686,542.05-12,373,713.90

Finding the Fourth Proportional to 12,457,694.70, 18,686,542.05 and 12,373,713.90

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Solution

The fourth proportional to 12,457,694.70, 18,686,542.05 and 12,373,713.90 is: 18,560,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,694.70 : 18,686,542.05 = 12,373,713.90 : x
  2. Step 2: Convert to fraction form
    12,457,694.70/18,686,542.05 = 12,373,713.90/x
  3. Step 3: Cross multiply
    12,457,694.70x = 18,686,542.05 × 12,373,713.90
  4. Step 4: Simplify right side
    12,457,694.70x = 231,221,925,107,019.50
  5. Step 5: Solve for x
    x = 231,221,925,107,019.50/12,457,694.70
  6. Step 6: Final answer
    x = 18,560,570.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.