Home / 231,614,830.20-347,422,245.30-78,258,672.30

Finding the Fourth Proportional to 231,614,830.20, 347,422,245.30 and 78,258,672.30

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Solution

The fourth proportional to 231,614,830.20, 347,422,245.30 and 78,258,672.30 is: 117,388,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,614,830.20 : 347,422,245.30 = 78,258,672.30 : x
  2. Step 2: Convert to fraction form
    231,614,830.20/347,422,245.30 = 78,258,672.30/x
  3. Step 3: Cross multiply
    231,614,830.20x = 347,422,245.30 × 78,258,672.30
  4. Step 4: Simplify right side
    231,614,830.20x = 27,188,803,644,662,916
  5. Step 5: Solve for x
    x = 27,188,803,644,662,916/231,614,830.20
  6. Step 6: Final answer
    x = 117,388,008.45

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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.