Home / 431,796,344.70-647,694,517.05-286,394,087.10

Finding the Fourth Proportional to 431,796,344.70, 647,694,517.05 and 286,394,087.10

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Solution

The fourth proportional to 431,796,344.70, 647,694,517.05 and 286,394,087.10 is: 429,591,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,344.70 : 647,694,517.05 = 286,394,087.10 : x
  2. Step 2: Convert to fraction form
    431,796,344.70/647,694,517.05 = 286,394,087.10/x
  3. Step 3: Cross multiply
    431,796,344.70x = 647,694,517.05 × 286,394,087.10
  4. Step 4: Simplify right side
    431,796,344.70x = 185,495,879,930,210,144
  5. Step 5: Solve for x
    x = 185,495,879,930,210,144/431,796,344.70
  6. Step 6: Final answer
    x = 429,591,130.65

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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.