Home / 12,649,653.56-17,455,182.38-7,142,694.62

Finding the Fourth Proportional to 12,649,653.56, 17,455,182.38 and 7,142,694.62

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Solution

The fourth proportional to 12,649,653.56, 17,455,182.38 and 7,142,694.62 is: 9,856,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649,653.56 : 17,455,182.38 = 7,142,694.62 : x
  2. Step 2: Convert to fraction form
    12,649,653.56/17,455,182.38 = 7,142,694.62/x
  3. Step 3: Cross multiply
    12,649,653.56x = 17,455,182.38 × 7,142,694.62
  4. Step 4: Simplify right side
    12,649,653.56x = 124,677,037,180,540.52
  5. Step 5: Solve for x
    x = 124,677,037,180,540.52/12,649,653.56
  6. Step 6: Final answer
    x = 9,856,162.19

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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.