Home / 262,656,098.40-393,984,147.60-257,281,327.20

Finding the Fourth Proportional to 262,656,098.40, 393,984,147.60 and 257,281,327.20

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Solution

The fourth proportional to 262,656,098.40, 393,984,147.60 and 257,281,327.20 is: 385,921,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,656,098.40 : 393,984,147.60 = 257,281,327.20 : x
  2. Step 2: Convert to fraction form
    262,656,098.40/393,984,147.60 = 257,281,327.20/x
  3. Step 3: Cross multiply
    262,656,098.40x = 393,984,147.60 × 257,281,327.20
  4. Step 4: Simplify right side
    262,656,098.40x = 101,364,764,390,288,704
  5. Step 5: Solve for x
    x = 101,364,764,390,288,704/262,656,098.40
  6. Step 6: Final answer
    x = 385,921,990.80

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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.