Home / 10,434,416.80-15,651,625.20-8,991,191.20

Finding the Fourth Proportional to 10,434,416.80, 15,651,625.20 and 8,991,191.20

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Solution

The fourth proportional to 10,434,416.80, 15,651,625.20 and 8,991,191.20 is: 13,486,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434,416.80 : 15,651,625.20 = 8,991,191.20 : x
  2. Step 2: Convert to fraction form
    10,434,416.80/15,651,625.20 = 8,991,191.20/x
  3. Step 3: Cross multiply
    10,434,416.80x = 15,651,625.20 × 8,991,191.20
  4. Step 4: Simplify right side
    10,434,416.80x = 140,726,754,763,938.22
  5. Step 5: Solve for x
    x = 140,726,754,763,938.22/10,434,416.80
  6. Step 6: Final answer
    x = 13,486,786.80

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Double scale
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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.