Home / 262,008,121.20-393,012,181.80-256,906,287.60

Finding the Fourth Proportional to 262,008,121.20, 393,012,181.80 and 256,906,287.60

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Solution

The fourth proportional to 262,008,121.20, 393,012,181.80 and 256,906,287.60 is: 385,359,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,008,121.20 : 393,012,181.80 = 256,906,287.60 : x
  2. Step 2: Convert to fraction form
    262,008,121.20/393,012,181.80 = 256,906,287.60/x
  3. Step 3: Cross multiply
    262,008,121.20x = 393,012,181.80 × 256,906,287.60
  4. Step 4: Simplify right side
    262,008,121.20x = 100,967,300,607,814,288
  5. Step 5: Solve for x
    x = 100,967,300,607,814,288/262,008,121.20
  6. Step 6: Final answer
    x = 385,359,431.40

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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.