Home / 288,735,621.20-433,103,431.80-220,711,173.20

Finding the Fourth Proportional to 288,735,621.20, 433,103,431.80 and 220,711,173.20

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Solution

The fourth proportional to 288,735,621.20, 433,103,431.80 and 220,711,173.20 is: 331,066,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,735,621.20 : 433,103,431.80 = 220,711,173.20 : x
  2. Step 2: Convert to fraction form
    288,735,621.20/433,103,431.80 = 220,711,173.20/x
  3. Step 3: Cross multiply
    288,735,621.20x = 433,103,431.80 × 220,711,173.20
  4. Step 4: Simplify right side
    288,735,621.20x = 95,590,766,549,524,192
  5. Step 5: Solve for x
    x = 95,590,766,549,524,192/288,735,621.20
  6. Step 6: Final answer
    x = 331,066,759.80

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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.