Home / 21,315,170.01-31,959,008.45-8,362,629.72

Finding the Fourth Proportional to 21,315,170.01, 31,959,008.45 and 8,362,629.72

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Solution

The fourth proportional to 21,315,170.01, 31,959,008.45 and 8,362,629.72 is: 12,538,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,170.01 : 31,959,008.45 = 8,362,629.72 : x
  2. Step 2: Convert to fraction form
    21,315,170.01/31,959,008.45 = 8,362,629.72/x
  3. Step 3: Cross multiply
    21,315,170.01x = 31,959,008.45 × 8,362,629.72
  4. Step 4: Simplify right side
    21,315,170.01x = 267,261,353,885,701.12
  5. Step 5: Solve for x
    x = 267,261,353,885,701.12/21,315,170.01
  6. Step 6: Final answer
    x = 12,538,551.36

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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.