Home / 363,831,856.20-545,747,784.30-145,374,175.80

Finding the Fourth Proportional to 363,831,856.20, 545,747,784.30 and 145,374,175.80

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Solution

The fourth proportional to 363,831,856.20, 545,747,784.30 and 145,374,175.80 is: 218,061,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,831,856.20 : 545,747,784.30 = 145,374,175.80 : x
  2. Step 2: Convert to fraction form
    363,831,856.20/545,747,784.30 = 145,374,175.80/x
  3. Step 3: Cross multiply
    363,831,856.20x = 545,747,784.30 × 145,374,175.80
  4. Step 4: Simplify right side
    363,831,856.20x = 79,337,634,337,288,672
  5. Step 5: Solve for x
    x = 79,337,634,337,288,672/363,831,856.20
  6. Step 6: Final answer
    x = 218,061,263.70

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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.