Home / 51,279,919.46-76,930,143.51-18,932,018.66

Finding the Fourth Proportional to 51,279,919.46, 76,930,143.51 and 18,932,018.66

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Solution

The fourth proportional to 51,279,919.46, 76,930,143.51 and 18,932,018.66 is: 28,401,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279,919.46 : 76,930,143.51 = 18,932,018.66 : x
  2. Step 2: Convert to fraction form
    51,279,919.46/76,930,143.51 = 18,932,018.66/x
  3. Step 3: Cross multiply
    51,279,919.46x = 76,930,143.51 × 18,932,018.66
  4. Step 4: Simplify right side
    51,279,919.46x = 1,456,442,912,447,798
  5. Step 5: Solve for x
    x = 1,456,442,912,447,798/51,279,919.46
  6. Step 6: Final answer
    x = 28,401,817.47

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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.