Home / 279,936,276.80-419,904,415.20-202,897,889.60

Finding the Fourth Proportional to 279,936,276.80, 419,904,415.20 and 202,897,889.60

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Solution

The fourth proportional to 279,936,276.80, 419,904,415.20 and 202,897,889.60 is: 304,346,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,276.80 : 419,904,415.20 = 202,897,889.60 : x
  2. Step 2: Convert to fraction form
    279,936,276.80/419,904,415.20 = 202,897,889.60/x
  3. Step 3: Cross multiply
    279,936,276.80x = 419,904,415.20 × 202,897,889.60
  4. Step 4: Simplify right side
    279,936,276.80x = 85,197,719,677,802,160
  5. Step 5: Solve for x
    x = 85,197,719,677,802,160/279,936,276.80
  6. Step 6: Final answer
    x = 304,346,834.40

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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.