Home / 21,474,120.39-29,622,993.35-12,766,098.75

Finding the Fourth Proportional to 21,474,120.39, 29,622,993.35 and 12,766,098.75

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Solution

The fourth proportional to 21,474,120.39, 29,622,993.35 and 12,766,098.75 is: 17,610,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474,120.39 : 29,622,993.35 = 12,766,098.75 : x
  2. Step 2: Convert to fraction form
    21,474,120.39/29,622,993.35 = 12,766,098.75/x
  3. Step 3: Cross multiply
    21,474,120.39x = 29,622,993.35 × 12,766,098.75
  4. Step 4: Simplify right side
    21,474,120.39x = 378,170,058,312,862.81
  5. Step 5: Solve for x
    x = 378,170,058,312,862.81/21,474,120.39
  6. Step 6: Final answer
    x = 17,610,502.85

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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.