Home / 18,145,739.80-27,218,609.70-12,397,720.60

Finding the Fourth Proportional to 18,145,739.80, 27,218,609.70 and 12,397,720.60

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Solution

The fourth proportional to 18,145,739.80, 27,218,609.70 and 12,397,720.60 is: 18,596,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,739.80 : 27,218,609.70 = 12,397,720.60 : x
  2. Step 2: Convert to fraction form
    18,145,739.80/27,218,609.70 = 12,397,720.60/x
  3. Step 3: Cross multiply
    18,145,739.80x = 27,218,609.70 × 12,397,720.60
  4. Step 4: Simplify right side
    18,145,739.80x = 337,448,718,181,049.81
  5. Step 5: Solve for x
    x = 337,448,718,181,049.81/18,145,739.80
  6. Step 6: Final answer
    x = 18,596,580.90

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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.