Home / 279,936,658.90-419,904,988.35-251,719,110.10

Finding the Fourth Proportional to 279,936,658.90, 419,904,988.35 and 251,719,110.10

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Solution

The fourth proportional to 279,936,658.90, 419,904,988.35 and 251,719,110.10 is: 377,578,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,658.90 : 419,904,988.35 = 251,719,110.10 : x
  2. Step 2: Convert to fraction form
    279,936,658.90/419,904,988.35 = 251,719,110.10/x
  3. Step 3: Cross multiply
    279,936,658.90x = 419,904,988.35 × 251,719,110.10
  4. Step 4: Simplify right side
    279,936,658.90x = 105,698,109,994,012,864
  5. Step 5: Solve for x
    x = 105,698,109,994,012,864/279,936,658.90
  6. Step 6: Final answer
    x = 377,578,665.15

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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.