Home / 20,702,172.24-28,569,114.90-12,005,508.42

Finding the Fourth Proportional to 20,702,172.24, 28,569,114.90 and 12,005,508.42

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Solution

The fourth proportional to 20,702,172.24, 28,569,114.90 and 12,005,508.42 is: 16,567,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,172.24 : 28,569,114.90 = 12,005,508.42 : x
  2. Step 2: Convert to fraction form
    20,702,172.24/28,569,114.90 = 12,005,508.42/x
  3. Step 3: Cross multiply
    20,702,172.24x = 28,569,114.90 × 12,005,508.42
  4. Step 4: Simplify right side
    20,702,172.24x = 342,986,749,483,897.44
  5. Step 5: Solve for x
    x = 342,986,749,483,897.44/20,702,172.24
  6. Step 6: Final answer
    x = 16,567,669.59

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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.