Home / 279,936,003.60-419,904,005.40-143,887,107.60

Finding the Fourth Proportional to 279,936,003.60, 419,904,005.40 and 143,887,107.60

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Solution

The fourth proportional to 279,936,003.60, 419,904,005.40 and 143,887,107.60 is: 215,830,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,003.60 : 419,904,005.40 = 143,887,107.60 : x
  2. Step 2: Convert to fraction form
    279,936,003.60/419,904,005.40 = 143,887,107.60/x
  3. Step 3: Cross multiply
    279,936,003.60x = 419,904,005.40 × 143,887,107.60
  4. Step 4: Simplify right side
    279,936,003.60x = 60,418,772,806,660,776
  5. Step 5: Solve for x
    x = 60,418,772,806,660,776/279,936,003.60
  6. Step 6: Final answer
    x = 215,830,661.40

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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.