Home / 268,920,516.80-403,380,775.20-263,251,812.80

Finding the Fourth Proportional to 268,920,516.80, 403,380,775.20 and 263,251,812.80

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Solution

The fourth proportional to 268,920,516.80, 403,380,775.20 and 263,251,812.80 is: 394,877,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,920,516.80 : 403,380,775.20 = 263,251,812.80 : x
  2. Step 2: Convert to fraction form
    268,920,516.80/403,380,775.20 = 263,251,812.80/x
  3. Step 3: Cross multiply
    268,920,516.80x = 403,380,775.20 × 263,251,812.80
  4. Step 4: Simplify right side
    268,920,516.80x = 106,190,720,320,069,280
  5. Step 5: Solve for x
    x = 106,190,720,320,069,280/268,920,516.80
  6. Step 6: Final answer
    x = 394,877,719.20

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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.