Home / 15,281,401.45-21,088,216.07-8,405,732.65

Finding the Fourth Proportional to 15,281,401.45, 21,088,216.07 and 8,405,732.65

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Solution

The fourth proportional to 15,281,401.45, 21,088,216.07 and 8,405,732.65 is: 11,599,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281,401.45 : 21,088,216.07 = 8,405,732.65 : x
  2. Step 2: Convert to fraction form
    15,281,401.45/21,088,216.07 = 8,405,732.65/x
  3. Step 3: Cross multiply
    15,281,401.45x = 21,088,216.07 × 8,405,732.65
  4. Step 4: Simplify right side
    15,281,401.45x = 177,261,906,307,825.03
  5. Step 5: Solve for x
    x = 177,261,906,307,825.03/15,281,401.45
  6. Step 6: Final answer
    x = 11,599,846.18

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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.