Home / 21,339,373.95-29,449,049.06-13,077,840.20

Finding the Fourth Proportional to 21,339,373.95, 29,449,049.06 and 13,077,840.20

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Solution

The fourth proportional to 21,339,373.95, 29,449,049.06 and 13,077,840.20 is: 18,047,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339,373.95 : 29,449,049.06 = 13,077,840.20 : x
  2. Step 2: Convert to fraction form
    21,339,373.95/29,449,049.06 = 13,077,840.20/x
  3. Step 3: Cross multiply
    21,339,373.95x = 29,449,049.06 × 13,077,840.20
  4. Step 4: Simplify right side
    21,339,373.95x = 385,129,957,436,005.75
  5. Step 5: Solve for x
    x = 385,129,957,436,005.75/21,339,373.95
  6. Step 6: Final answer
    x = 18,047,856.43

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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.