Home / 21,315,370.20-31,959,307.92-8,362,829.90

Finding the Fourth Proportional to 21,315,370.20, 31,959,307.92 and 8,362,829.90

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Solution

The fourth proportional to 21,315,370.20, 31,959,307.92 and 8,362,829.90 is: 12,538,851.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,370.20 : 31,959,307.92 = 8,362,829.90 : x
  2. Step 2: Convert to fraction form
    21,315,370.20/31,959,307.92 = 8,362,829.90/x
  3. Step 3: Cross multiply
    21,315,370.20x = 31,959,307.92 × 8,362,829.90
  4. Step 4: Simplify right side
    21,315,370.20x = 267,270,255,734,970.38
  5. Step 5: Solve for x
    x = 267,270,255,734,970.38/21,315,370.20
  6. Step 6: Final answer
    x = 12,538,851.22

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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.