Home / 12,837,780.08-17,717,951.04-7,944,578.20

Finding the Fourth Proportional to 12,837,780.08, 17,717,951.04 and 7,944,578.20

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Solution

The fourth proportional to 12,837,780.08, 17,717,951.04 and 7,944,578.20 is: 10,964,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837,780.08 : 17,717,951.04 = 7,944,578.20 : x
  2. Step 2: Convert to fraction form
    12,837,780.08/17,717,951.04 = 7,944,578.20/x
  3. Step 3: Cross multiply
    12,837,780.08x = 17,717,951.04 × 7,944,578.20
  4. Step 4: Simplify right side
    12,837,780.08x = 140,761,647,581,051.31
  5. Step 5: Solve for x
    x = 140,761,647,581,051.31/12,837,780.08
  6. Step 6: Final answer
    x = 10,964,640.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.