Home / 20,702,157.24-28,569,094.11-12,005,493.42

Finding the Fourth Proportional to 20,702,157.24, 28,569,094.11 and 12,005,493.42

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Solution

The fourth proportional to 20,702,157.24, 28,569,094.11 and 12,005,493.42 is: 16,567,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,157.24 : 28,569,094.11 = 12,005,493.42 : x
  2. Step 2: Convert to fraction form
    20,702,157.24/28,569,094.11 = 12,005,493.42/x
  3. Step 3: Cross multiply
    20,702,157.24x = 28,569,094.11 × 12,005,493.42
  4. Step 4: Simplify right side
    20,702,157.24x = 342,986,071,352,965.75
  5. Step 5: Solve for x
    x = 342,986,071,352,965.75/20,702,157.24
  6. Step 6: Final answer
    x = 16,567,648.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.