Home / 21,422,532.10-29,552,162.97-13,679,433.22

Finding the Fourth Proportional to 21,422,532.10, 29,552,162.97 and 13,679,433.22

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Solution

The fourth proportional to 21,422,532.10, 29,552,162.97 and 13,679,433.22 is: 18,870,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422,532.10 : 29,552,162.97 = 13,679,433.22 : x
  2. Step 2: Convert to fraction form
    21,422,532.10/29,552,162.97 = 13,679,433.22/x
  3. Step 3: Cross multiply
    21,422,532.10x = 29,552,162.97 × 13,679,433.22
  4. Step 4: Simplify right side
    21,422,532.10x = 404,256,839,854,671.88
  5. Step 5: Solve for x
    x = 404,256,839,854,671.88/21,422,532.10
  6. Step 6: Final answer
    x = 18,870,637.61

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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.