Home / 212,563,764.60-318,901,634.10-76,234,932.60

Finding the Fourth Proportional to 212,563,764.60, 318,901,634.10 and 76,234,932.60

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Solution

The fourth proportional to 212,563,764.60, 318,901,634.10 and 76,234,932.60 is: 114,372,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,563,764.60 : 318,901,634.10 = 76,234,932.60 : x
  2. Step 2: Convert to fraction form
    212,563,764.60/318,901,634.10 = 76,234,932.60/x
  3. Step 3: Cross multiply
    212,563,764.60x = 318,901,634.10 × 76,234,932.60
  4. Step 4: Simplify right side
    212,563,764.60x = 24,311,444,581,643,360
  5. Step 5: Solve for x
    x = 24,311,444,581,643,360/212,563,764.60
  6. Step 6: Final answer
    x = 114,372,478.43

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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.