Home / 15,401,311.57-21,254,060.91-8,431,872.31

Finding the Fourth Proportional to 15,401,311.57, 21,254,060.91 and 8,431,872.31

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Solution

The fourth proportional to 15,401,311.57, 21,254,060.91 and 8,431,872.31 is: 11,636,121.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,311.57 : 21,254,060.91 = 8,431,872.31 : x
  2. Step 2: Convert to fraction form
    15,401,311.57/21,254,060.91 = 8,431,872.31/x
  3. Step 3: Cross multiply
    15,401,311.57x = 21,254,060.91 × 8,431,872.31
  4. Step 4: Simplify right side
    15,401,311.57x = 179,211,527,662,082.41
  5. Step 5: Solve for x
    x = 179,211,527,662,082.41/15,401,311.57
  6. Step 6: Final answer
    x = 11,636,121.17

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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.