Home / 431,796,346.20-647,694,519.30-286,394,088.60

Finding the Fourth Proportional to 431,796,346.20, 647,694,519.30 and 286,394,088.60

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Solution

The fourth proportional to 431,796,346.20, 647,694,519.30 and 286,394,088.60 is: 429,591,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,346.20 : 647,694,519.30 = 286,394,088.60 : x
  2. Step 2: Convert to fraction form
    431,796,346.20/647,694,519.30 = 286,394,088.60/x
  3. Step 3: Cross multiply
    431,796,346.20x = 647,694,519.30 × 286,394,088.60
  4. Step 4: Simplify right side
    431,796,346.20x = 185,495,881,546,138,624
  5. Step 5: Solve for x
    x = 185,495,881,546,138,624/431,796,346.20
  6. Step 6: Final answer
    x = 429,591,132.90

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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.