Home / 21,010,997.34-29,008,671.21-13,181,244.66

Finding the Fourth Proportional to 21,010,997.34, 29,008,671.21 and 13,181,244.66

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Solution

The fourth proportional to 21,010,997.34, 29,008,671.21 and 13,181,244.66 is: 18,198,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,997.34 : 29,008,671.21 = 13,181,244.66 : x
  2. Step 2: Convert to fraction form
    21,010,997.34/29,008,671.21 = 13,181,244.66/x
  3. Step 3: Cross multiply
    21,010,997.34x = 29,008,671.21 × 13,181,244.66
  4. Step 4: Simplify right side
    21,010,997.34x = 382,370,392,480,508.25
  5. Step 5: Solve for x
    x = 382,370,392,480,508.25/21,010,997.34
  6. Step 6: Final answer
    x = 18,198,583.64

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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.