Home / 8,538,424.12-12,806,689.62-2,148,678.20

Finding the Fourth Proportional to 8,538,424.12, 12,806,689.62 and 2,148,678.20

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Solution

The fourth proportional to 8,538,424.12, 12,806,689.62 and 2,148,678.20 is: 3,222,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,424.12 : 12,806,689.62 = 2,148,678.20 : x
  2. Step 2: Convert to fraction form
    8,538,424.12/12,806,689.62 = 2,148,678.20/x
  3. Step 3: Cross multiply
    8,538,424.12x = 12,806,689.62 × 2,148,678.20
  4. Step 4: Simplify right side
    8,538,424.12x = 27,517,454,800,660.29
  5. Step 5: Solve for x
    x = 27,517,454,800,660.29/8,538,424.12
  6. Step 6: Final answer
    x = 3,222,779.10

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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.