Home / 279,936,005.40-419,904,008.10-254,853,739.80

Finding the Fourth Proportional to 279,936,005.40, 419,904,008.10 and 254,853,739.80

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Solution

The fourth proportional to 279,936,005.40, 419,904,008.10 and 254,853,739.80 is: 382,280,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,005.40 : 419,904,008.10 = 254,853,739.80 : x
  2. Step 2: Convert to fraction form
    279,936,005.40/419,904,008.10 = 254,853,739.80/x
  3. Step 3: Cross multiply
    279,936,005.40x = 419,904,008.10 × 254,853,739.80
  4. Step 4: Simplify right side
    279,936,005.40x = 107,014,106,821,294,496
  5. Step 5: Solve for x
    x = 107,014,106,821,294,496/279,936,005.40
  6. Step 6: Final answer
    x = 382,280,609.70

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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.