Home / 21,461,331.20-32,191,996.80-7,086,617.60

Finding the Fourth Proportional to 21,461,331.20, 32,191,996.80 and 7,086,617.60

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Solution

The fourth proportional to 21,461,331.20, 32,191,996.80 and 7,086,617.60 is: 10,629,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461,331.20 : 32,191,996.80 = 7,086,617.60 : x
  2. Step 2: Convert to fraction form
    21,461,331.20/32,191,996.80 = 7,086,617.60/x
  3. Step 3: Cross multiply
    21,461,331.20x = 32,191,996.80 × 7,086,617.60
  4. Step 4: Simplify right side
    21,461,331.20x = 228,132,371,102,023.69
  5. Step 5: Solve for x
    x = 228,132,371,102,023.69/21,461,331.20
  6. Step 6: Final answer
    x = 10,629,926.40

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Similar ratio
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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.