Home / 21,438,031.30-32,157,046.95-12,368,104.90

Finding the Fourth Proportional to 21,438,031.30, 32,157,046.95 and 12,368,104.90

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Solution

The fourth proportional to 21,438,031.30, 32,157,046.95 and 12,368,104.90 is: 18,552,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,031.30 : 32,157,046.95 = 12,368,104.90 : x
  2. Step 2: Convert to fraction form
    21,438,031.30/32,157,046.95 = 12,368,104.90/x
  3. Step 3: Cross multiply
    21,438,031.30x = 32,157,046.95 × 12,368,104.90
  4. Step 4: Simplify right side
    21,438,031.30x = 397,721,729,951,825.06
  5. Step 5: Solve for x
    x = 397,721,729,951,825.06/21,438,031.30
  6. Step 6: Final answer
    x = 18,552,157.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.