Home / 21,019,331.66-29,006,016.37-12,323,294.78

Finding the Fourth Proportional to 21,019,331.66, 29,006,016.37 and 12,323,294.78

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Solution

The fourth proportional to 21,019,331.66, 29,006,016.37 and 12,323,294.78 is: 17,005,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,331.66 : 29,006,016.37 = 12,323,294.78 : x
  2. Step 2: Convert to fraction form
    21,019,331.66/29,006,016.37 = 12,323,294.78/x
  3. Step 3: Cross multiply
    21,019,331.66x = 29,006,016.37 × 12,323,294.78
  4. Step 4: Simplify right side
    21,019,331.66x = 357,449,689,945,177.25
  5. Step 5: Solve for x
    x = 357,449,689,945,177.25/21,019,331.66
  6. Step 6: Final answer
    x = 17,005,759.07

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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.