Home / 279,936,246.90-419,904,370.35-143,887,350.90

Finding the Fourth Proportional to 279,936,246.90, 419,904,370.35 and 143,887,350.90

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Solution

The fourth proportional to 279,936,246.90, 419,904,370.35 and 143,887,350.90 is: 215,831,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,246.90 : 419,904,370.35 = 143,887,350.90 : x
  2. Step 2: Convert to fraction form
    279,936,246.90/419,904,370.35 = 143,887,350.90/x
  3. Step 3: Cross multiply
    279,936,246.90x = 419,904,370.35 × 143,887,350.90
  4. Step 4: Simplify right side
    279,936,246.90x = 60,418,927,480,994,008
  5. Step 5: Solve for x
    x = 60,418,927,480,994,008/279,936,246.90
  6. Step 6: Final answer
    x = 215,831,026.35

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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.