Home / 279,936,657.90-419,904,986.85-251,719,109.10

Finding the Fourth Proportional to 279,936,657.90, 419,904,986.85 and 251,719,109.10

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Solution

The fourth proportional to 279,936,657.90, 419,904,986.85 and 251,719,109.10 is: 377,578,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,657.90 : 419,904,986.85 = 251,719,109.10 : x
  2. Step 2: Convert to fraction form
    279,936,657.90/419,904,986.85 = 251,719,109.10/x
  3. Step 3: Cross multiply
    279,936,657.90x = 419,904,986.85 × 251,719,109.10
  4. Step 4: Simplify right side
    279,936,657.90x = 105,698,109,196,529,216
  5. Step 5: Solve for x
    x = 105,698,109,196,529,216/279,936,657.90
  6. Step 6: Final answer
    x = 377,578,663.65

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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.