Home / 15,517,290.18-21,410,584.21-8,990,522.20

Finding the Fourth Proportional to 15,517,290.18, 21,410,584.21 and 8,990,522.20

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Solution

The fourth proportional to 15,517,290.18, 21,410,584.21 and 8,990,522.20 is: 12,405,022.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517,290.18 : 21,410,584.21 = 8,990,522.20 : x
  2. Step 2: Convert to fraction form
    15,517,290.18/21,410,584.21 = 8,990,522.20/x
  3. Step 3: Cross multiply
    15,517,290.18x = 21,410,584.21 × 8,990,522.20
  4. Step 4: Simplify right side
    15,517,290.18x = 192,492,332,502,968.91
  5. Step 5: Solve for x
    x = 192,492,332,502,968.91/15,517,290.18
  6. Step 6: Final answer
    x = 12,405,022.42

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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.