Home / 814,520,216.40-1,221,780,324.60-269,261,750.40

Finding the Fourth Proportional to 814,520,216.40, 1,221,780,324.60 and 269,261,750.40

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Solution

The fourth proportional to 814,520,216.40, 1,221,780,324.60 and 269,261,750.40 is: 403,892,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,520,216.40 : 1,221,780,324.60 = 269,261,750.40 : x
  2. Step 2: Convert to fraction form
    814,520,216.40/1,221,780,324.60 = 269,261,750.40/x
  3. Step 3: Cross multiply
    814,520,216.40x = 1,221,780,324.60 × 269,261,750.40
  4. Step 4: Simplify right side
    814,520,216.40x = 328,978,708,806,076,096
  5. Step 5: Solve for x
    x = 328,978,708,806,076,096/814,520,216.40
  6. Step 6: Final answer
    x = 403,892,625.60

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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.