Home / 20,702,106.74-28,569,024.33-12,005,442.92

Finding the Fourth Proportional to 20,702,106.74, 28,569,024.33 and 12,005,442.92

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Solution

The fourth proportional to 20,702,106.74, 28,569,024.33 and 12,005,442.92 is: 16,567,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,106.74 : 28,569,024.33 = 12,005,442.92 : x
  2. Step 2: Convert to fraction form
    20,702,106.74/28,569,024.33 = 12,005,442.92/x
  3. Step 3: Cross multiply
    20,702,106.74x = 28,569,024.33 × 12,005,442.92
  4. Step 4: Simplify right side
    20,702,106.74x = 342,983,790,873,906.25
  5. Step 5: Solve for x
    x = 342,983,790,873,906.25/20,702,106.74
  6. Step 6: Final answer
    x = 16,567,579.10

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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.