Home / 279,936,612.20-419,904,918.30-157,492,605.80

Finding the Fourth Proportional to 279,936,612.20, 419,904,918.30 and 157,492,605.80

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Solution

The fourth proportional to 279,936,612.20, 419,904,918.30 and 157,492,605.80 is: 236,238,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,612.20 : 419,904,918.30 = 157,492,605.80 : x
  2. Step 2: Convert to fraction form
    279,936,612.20/419,904,918.30 = 157,492,605.80/x
  3. Step 3: Cross multiply
    279,936,612.20x = 419,904,918.30 × 157,492,605.80
  4. Step 4: Simplify right side
    279,936,612.20x = 66,131,919,771,303,112
  5. Step 5: Solve for x
    x = 66,131,919,771,303,112/279,936,612.20
  6. Step 6: Final answer
    x = 236,238,908.70

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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.