Home / 18,812,886.52-28,216,306.74-5,162,844.28

Finding the Fourth Proportional to 18,812,886.52, 28,216,306.74 and 5,162,844.28

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Solution

The fourth proportional to 18,812,886.52, 28,216,306.74 and 5,162,844.28 is: 7,743,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812,886.52 : 28,216,306.74 = 5,162,844.28 : x
  2. Step 2: Convert to fraction form
    18,812,886.52/28,216,306.74 = 5,162,844.28/x
  3. Step 3: Cross multiply
    18,812,886.52x = 28,216,306.74 × 5,162,844.28
  4. Step 4: Simplify right side
    18,812,886.52x = 145,676,397,855,334.44
  5. Step 5: Solve for x
    x = 145,676,397,855,334.44/18,812,886.52
  6. Step 6: Final answer
    x = 7,743,436.80

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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.