Home / 21,263,242.60-31,910,610.30-8,492,912.20

Finding the Fourth Proportional to 21,263,242.60, 31,910,610.30 and 8,492,912.20

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Solution

The fourth proportional to 21,263,242.60, 31,910,610.30 and 8,492,912.20 is: 12,745,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,242.60 : 31,910,610.30 = 8,492,912.20 : x
  2. Step 2: Convert to fraction form
    21,263,242.60/31,910,610.30 = 8,492,912.20/x
  3. Step 3: Cross multiply
    21,263,242.60x = 31,910,610.30 × 8,492,912.20
  4. Step 4: Simplify right side
    21,263,242.60x = 271,014,011,526,315.66
  5. Step 5: Solve for x
    x = 271,014,011,526,315.66/21,263,242.60
  6. Step 6: Final answer
    x = 12,745,657.69

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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.