Home / 12,215,518.80-18,318,612.60-3,693,022.80

Finding the Fourth Proportional to 12,215,518.80, 18,318,612.60 and 3,693,022.80

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Solution

The fourth proportional to 12,215,518.80, 18,318,612.60 and 3,693,022.80 is: 5,538,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,518.80 : 18,318,612.60 = 3,693,022.80 : x
  2. Step 2: Convert to fraction form
    12,215,518.80/18,318,612.60 = 3,693,022.80/x
  3. Step 3: Cross multiply
    12,215,518.80x = 18,318,612.60 × 3,693,022.80
  4. Step 4: Simplify right side
    12,215,518.80x = 67,651,053,996,167.28
  5. Step 5: Solve for x
    x = 67,651,053,996,167.28/12,215,518.80
  6. Step 6: Final answer
    x = 5,538,123.69

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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.