Home / 279,936,385.40-419,904,578.10-177,773,742.20

Finding the Fourth Proportional to 279,936,385.40, 419,904,578.10 and 177,773,742.20

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Solution

The fourth proportional to 279,936,385.40, 419,904,578.10 and 177,773,742.20 is: 266,660,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,385.40 : 419,904,578.10 = 177,773,742.20 : x
  2. Step 2: Convert to fraction form
    279,936,385.40/419,904,578.10 = 177,773,742.20/x
  3. Step 3: Cross multiply
    279,936,385.40x = 419,904,578.10 × 177,773,742.20
  4. Step 4: Simplify right side
    279,936,385.40x = 74,648,008,215,749,168
  5. Step 5: Solve for x
    x = 74,648,008,215,749,168/279,936,385.40
  6. Step 6: Final answer
    x = 266,660,613.30

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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.