Home / 279,936,206.40-419,904,309.60-143,887,310.40

Finding the Fourth Proportional to 279,936,206.40, 419,904,309.60 and 143,887,310.40

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Solution

The fourth proportional to 279,936,206.40, 419,904,309.60 and 143,887,310.40 is: 215,830,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,206.40 : 419,904,309.60 = 143,887,310.40 : x
  2. Step 2: Convert to fraction form
    279,936,206.40/419,904,309.60 = 143,887,310.40/x
  3. Step 3: Cross multiply
    279,936,206.40x = 419,904,309.60 × 143,887,310.40
  4. Step 4: Simplify right side
    279,936,206.40x = 60,418,901,733,712,904
  5. Step 5: Solve for x
    x = 60,418,901,733,712,904/279,936,206.40
  6. Step 6: Final answer
    x = 215,830,965.60

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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.