Home / 16,990,499.12-25,489,478.32-12,489,128.24

Finding the Fourth Proportional to 16,990,499.12, 25,489,478.32 and 12,489,128.24

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Solution

The fourth proportional to 16,990,499.12, 25,489,478.32 and 12,489,128.24 is: 18,736,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990,499.12 : 25,489,478.32 = 12,489,128.24 : x
  2. Step 2: Convert to fraction form
    16,990,499.12/25,489,478.32 = 12,489,128.24/x
  3. Step 3: Cross multiply
    16,990,499.12x = 25,489,478.32 × 12,489,128.24
  4. Step 4: Simplify right side
    16,990,499.12x = 318,341,363,509,179.75
  5. Step 5: Solve for x
    x = 318,341,363,509,179.75/16,990,499.12
  6. Step 6: Final answer
    x = 18,736,433.89

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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.