Home / 279,936,029.90-419,904,044.85-85,877,396.30

Finding the Fourth Proportional to 279,936,029.90, 419,904,044.85 and 85,877,396.30

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Solution

The fourth proportional to 279,936,029.90, 419,904,044.85 and 85,877,396.30 is: 128,816,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,029.90 : 419,904,044.85 = 85,877,396.30 : x
  2. Step 2: Convert to fraction form
    279,936,029.90/419,904,044.85 = 85,877,396.30/x
  3. Step 3: Cross multiply
    279,936,029.90x = 419,904,044.85 × 85,877,396.30
  4. Step 4: Simplify right side
    279,936,029.90x = 36,060,266,067,556,424
  5. Step 5: Solve for x
    x = 36,060,266,067,556,424/279,936,029.90
  6. Step 6: Final answer
    x = 128,816,094.45

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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.