Home / 18,513,646.40-27,770,469.60-12,467,028.80

Finding the Fourth Proportional to 18,513,646.40, 27,770,469.60 and 12,467,028.80

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Solution

The fourth proportional to 18,513,646.40, 27,770,469.60 and 12,467,028.80 is: 18,700,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513,646.40 : 27,770,469.60 = 12,467,028.80 : x
  2. Step 2: Convert to fraction form
    18,513,646.40/27,770,469.60 = 12,467,028.80/x
  3. Step 3: Cross multiply
    18,513,646.40x = 27,770,469.60 × 12,467,028.80
  4. Step 4: Simplify right side
    18,513,646.40x = 346,215,244,292,724.50
  5. Step 5: Solve for x
    x = 346,215,244,292,724.50/18,513,646.40
  6. Step 6: Final answer
    x = 18,700,543.20

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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.