Home / 279,936,276.40-419,904,414.60-126,881,268.40

Finding the Fourth Proportional to 279,936,276.40, 419,904,414.60 and 126,881,268.40

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Solution

The fourth proportional to 279,936,276.40, 419,904,414.60 and 126,881,268.40 is: 190,321,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,276.40 : 419,904,414.60 = 126,881,268.40 : x
  2. Step 2: Convert to fraction form
    279,936,276.40/419,904,414.60 = 126,881,268.40/x
  3. Step 3: Cross multiply
    279,936,276.40x = 419,904,414.60 × 126,881,268.40
  4. Step 4: Simplify right side
    279,936,276.40x = 53,278,004,731,207,488
  5. Step 5: Solve for x
    x = 53,278,004,731,207,488/279,936,276.40
  6. Step 6: Final answer
    x = 190,321,902.60

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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.