Home / 12,370,982.40-18,561,139.20-5,986,886.40

Finding the Fourth Proportional to 12,370,982.40, 18,561,139.20 and 5,986,886.40

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Solution

The fourth proportional to 12,370,982.40, 18,561,139.20 and 5,986,886.40 is: 8,982,587.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370,982.40 : 18,561,139.20 = 5,986,886.40 : x
  2. Step 2: Convert to fraction form
    12,370,982.40/18,561,139.20 = 5,986,886.40/x
  3. Step 3: Cross multiply
    12,370,982.40x = 18,561,139.20 × 5,986,886.40
  4. Step 4: Simplify right side
    12,370,982.40x = 111,123,431,844,986.88
  5. Step 5: Solve for x
    x = 111,123,431,844,986.88/12,370,982.40
  6. Step 6: Final answer
    x = 8,982,587.50

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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.