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Finding the Fourth Proportional to 299,551,632.80, 449,327,449.20 and 265,539,408.80

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Solution

The fourth proportional to 299,551,632.80, 449,327,449.20 and 265,539,408.80 is: 398,309,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,551,632.80 : 449,327,449.20 = 265,539,408.80 : x
  2. Step 2: Convert to fraction form
    299,551,632.80/449,327,449.20 = 265,539,408.80/x
  3. Step 3: Cross multiply
    299,551,632.80x = 449,327,449.20 × 265,539,408.80
  4. Step 4: Simplify right side
    299,551,632.80x = 119,314,145,218,180,032
  5. Step 5: Solve for x
    x = 119,314,145,218,180,032/299,551,632.80
  6. Step 6: Final answer
    x = 398,309,113.20

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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.