Home / 279,936,645.15-419,904,967.73-251,719,096.35

Finding the Fourth Proportional to 279,936,645.15, 419,904,967.73 and 251,719,096.35

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Solution

The fourth proportional to 279,936,645.15, 419,904,967.73 and 251,719,096.35 is: 377,578,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,645.15 : 419,904,967.73 = 251,719,096.35 : x
  2. Step 2: Convert to fraction form
    279,936,645.15/419,904,967.73 = 251,719,096.35/x
  3. Step 3: Cross multiply
    279,936,645.15x = 419,904,967.73 × 251,719,096.35
  4. Step 4: Simplify right side
    279,936,645.15x = 105,698,099,029,871,520
  5. Step 5: Solve for x
    x = 105,698,099,029,871,520/279,936,645.15
  6. Step 6: Final answer
    x = 377,578,644.53

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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.