Home / 15,121,778.40-22,682,667.60-13,799,080.80

Finding the Fourth Proportional to 15,121,778.40, 22,682,667.60 and 13,799,080.80

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Solution

The fourth proportional to 15,121,778.40, 22,682,667.60 and 13,799,080.80 is: 20,698,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121,778.40 : 22,682,667.60 = 13,799,080.80 : x
  2. Step 2: Convert to fraction form
    15,121,778.40/22,682,667.60 = 13,799,080.80/x
  3. Step 3: Cross multiply
    15,121,778.40x = 22,682,667.60 × 13,799,080.80
  4. Step 4: Simplify right side
    15,121,778.40x = 312,999,962,971,942.12
  5. Step 5: Solve for x
    x = 312,999,962,971,942.12/15,121,778.40
  6. Step 6: Final answer
    x = 20,698,621.20

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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.