Home / 18,517,605.40-27,768,113.70-8,415,026.20

Finding the Fourth Proportional to 18,517,605.40, 27,768,113.70 and 8,415,026.20

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Solution

The fourth proportional to 18,517,605.40, 27,768,113.70 and 8,415,026.20 is: 12,618,770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,605.40 : 27,768,113.70 = 8,415,026.20 : x
  2. Step 2: Convert to fraction form
    18,517,605.40/27,768,113.70 = 8,415,026.20/x
  3. Step 3: Cross multiply
    18,517,605.40x = 27,768,113.70 × 8,415,026.20
  4. Step 4: Simplify right side
    18,517,605.40x = 233,669,404,310,078.91
  5. Step 5: Solve for x
    x = 233,669,404,310,078.91/18,517,605.40
  6. Step 6: Final answer
    x = 12,618,770.04

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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.