Home / 15,646,995.68-21,594,146.69-8,679,919.49

Finding the Fourth Proportional to 15,646,995.68, 21,594,146.69 and 8,679,919.49

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Solution

The fourth proportional to 15,646,995.68, 21,594,146.69 and 8,679,919.49 is: 11,979,005.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646,995.68 : 21,594,146.69 = 8,679,919.49 : x
  2. Step 2: Convert to fraction form
    15,646,995.68/21,594,146.69 = 8,679,919.49/x
  3. Step 3: Cross multiply
    15,646,995.68x = 21,594,146.69 × 8,679,919.49
  4. Step 4: Simplify right side
    15,646,995.68x = 187,435,454,573,079.62
  5. Step 5: Solve for x
    x = 187,435,454,573,079.62/15,646,995.68
  6. Step 6: Final answer
    x = 11,979,005.97

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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.