Home / 279,936,237.60-419,904,356.40-177,395,680.80

Finding the Fourth Proportional to 279,936,237.60, 419,904,356.40 and 177,395,680.80

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Solution

The fourth proportional to 279,936,237.60, 419,904,356.40 and 177,395,680.80 is: 266,093,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,237.60 : 419,904,356.40 = 177,395,680.80 : x
  2. Step 2: Convert to fraction form
    279,936,237.60/419,904,356.40 = 177,395,680.80/x
  3. Step 3: Cross multiply
    279,936,237.60x = 419,904,356.40 × 177,395,680.80
  4. Step 4: Simplify right side
    279,936,237.60x = 74,489,219,174,463,840
  5. Step 5: Solve for x
    x = 74,489,219,174,463,840/279,936,237.60
  6. Step 6: Final answer
    x = 266,093,521.20

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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.