Home / 28,982,138.40-43,423,441.20-18,879,559.20

Finding the Fourth Proportional to 28,982,138.40, 43,423,441.20 and 18,879,559.20

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Solution

The fourth proportional to 28,982,138.40, 43,423,441.20 and 18,879,559.20 is: 28,286,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982,138.40 : 43,423,441.20 = 18,879,559.20 : x
  2. Step 2: Convert to fraction form
    28,982,138.40/43,423,441.20 = 18,879,559.20/x
  3. Step 3: Cross multiply
    28,982,138.40x = 43,423,441.20 × 18,879,559.20
  4. Step 4: Simplify right side
    28,982,138.40x = 819,815,428,803,119.12
  5. Step 5: Solve for x
    x = 819,815,428,803,119.12/28,982,138.40
  6. Step 6: Final answer
    x = 28,286,919.95

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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.