Home / 20,829,912.32-31,229,734.84-8,702,843.93

Finding the Fourth Proportional to 20,829,912.32, 31,229,734.84 and 8,702,843.93

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Solution

The fourth proportional to 20,829,912.32, 31,229,734.84 and 8,702,843.93 is: 13,047,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,912.32 : 31,229,734.84 = 8,702,843.93 : x
  2. Step 2: Convert to fraction form
    20,829,912.32/31,229,734.84 = 8,702,843.93/x
  3. Step 3: Cross multiply
    20,829,912.32x = 31,229,734.84 × 8,702,843.93
  4. Step 4: Simplify right side
    20,829,912.32x = 271,787,508,287,803.50
  5. Step 5: Solve for x
    x = 271,787,508,287,803.50/20,829,912.32
  6. Step 6: Final answer
    x = 13,047,942.98

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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.