Home / 51,229,814.20-76,888,266.90-20,959,401.40

Finding the Fourth Proportional to 51,229,814.20, 76,888,266.90 and 20,959,401.40

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Solution

The fourth proportional to 51,229,814.20, 76,888,266.90 and 20,959,401.40 is: 31,456,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,229,814.20 : 76,888,266.90 = 20,959,401.40 : x
  2. Step 2: Convert to fraction form
    51,229,814.20/76,888,266.90 = 20,959,401.40/x
  3. Step 3: Cross multiply
    51,229,814.20x = 76,888,266.90 × 20,959,401.40
  4. Step 4: Simplify right side
    51,229,814.20x = 1,611,532,048,907,433.75
  5. Step 5: Solve for x
    x = 1,611,532,048,907,433.75/51,229,814.20
  6. Step 6: Final answer
    x = 31,456,917.70

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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.