Home / 12,786,297.31-17,645,350.40-6,985,454.77

Finding the Fourth Proportional to 12,786,297.31, 17,645,350.40 and 6,985,454.77

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Solution

The fourth proportional to 12,786,297.31, 17,645,350.40 and 6,985,454.77 is: 9,640,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786,297.31 : 17,645,350.40 = 6,985,454.77 : x
  2. Step 2: Convert to fraction form
    12,786,297.31/17,645,350.40 = 6,985,454.77/x
  3. Step 3: Cross multiply
    12,786,297.31x = 17,645,350.40 × 6,985,454.77
  4. Step 4: Simplify right side
    12,786,297.31x = 123,260,797,120,001.39
  5. Step 5: Solve for x
    x = 123,260,797,120,001.39/12,786,297.31
  6. Step 6: Final answer
    x = 9,640,069.69

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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.