Home / 279,936,363.20-419,904,544.80-157,492,356.80

Finding the Fourth Proportional to 279,936,363.20, 419,904,544.80 and 157,492,356.80

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Solution

The fourth proportional to 279,936,363.20, 419,904,544.80 and 157,492,356.80 is: 236,238,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,363.20 : 419,904,544.80 = 157,492,356.80 : x
  2. Step 2: Convert to fraction form
    279,936,363.20/419,904,544.80 = 157,492,356.80/x
  3. Step 3: Cross multiply
    279,936,363.20x = 419,904,544.80 × 157,492,356.80
  4. Step 4: Simplify right side
    279,936,363.20x = 66,131,756,391,583,192
  5. Step 5: Solve for x
    x = 66,131,756,391,583,192/279,936,363.20
  6. Step 6: Final answer
    x = 236,238,535.20

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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.