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Finding the Fourth Proportional to 279,937,384.60, 419,906,076.90 and 202,843,010.20

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Solution

The fourth proportional to 279,937,384.60, 419,906,076.90 and 202,843,010.20 is: 304,264,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,384.60 : 419,906,076.90 = 202,843,010.20 : x
  2. Step 2: Convert to fraction form
    279,937,384.60/419,906,076.90 = 202,843,010.20/x
  3. Step 3: Cross multiply
    279,937,384.60x = 419,906,076.90 × 202,843,010.20
  4. Step 4: Simplify right side
    279,937,384.60x = 85,175,012,639,668,672
  5. Step 5: Solve for x
    x = 85,175,012,639,668,672/279,937,384.60
  6. Step 6: Final answer
    x = 304,264,515.30

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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.