Home / 20,405,099.08-28,156,954.77-12,563,367.28

Finding the Fourth Proportional to 20,405,099.08, 28,156,954.77 and 12,563,367.28

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Solution

The fourth proportional to 20,405,099.08, 28,156,954.77 and 12,563,367.28 is: 17,336,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,099.08 : 28,156,954.77 = 12,563,367.28 : x
  2. Step 2: Convert to fraction form
    20,405,099.08/28,156,954.77 = 12,563,367.28/x
  3. Step 3: Cross multiply
    20,405,099.08x = 28,156,954.77 × 12,563,367.28
  4. Step 4: Simplify right side
    20,405,099.08x = 353,746,164,261,857.88
  5. Step 5: Solve for x
    x = 353,746,164,261,857.88/20,405,099.08
  6. Step 6: Final answer
    x = 17,336,164.99

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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.