Home / 807,984,319.20-1,211,800,556.52-217,760,783.28

Finding the Fourth Proportional to 807,984,319.20, 1,211,800,556.52 and 217,760,783.28

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Solution

The fourth proportional to 807,984,319.20, 1,211,800,556.52 and 217,760,783.28 is: 326,593,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,984,319.20 : 1,211,800,556.52 = 217,760,783.28 : x
  2. Step 2: Convert to fraction form
    807,984,319.20/1,211,800,556.52 = 217,760,783.28/x
  3. Step 3: Cross multiply
    807,984,319.20x = 1,211,800,556.52 × 217,760,783.28
  4. Step 4: Simplify right side
    807,984,319.20x = 263,882,638,366,935,104
  5. Step 5: Solve for x
    x = 263,882,638,366,935,104/807,984,319.20
  6. Step 6: Final answer
    x = 326,593,761.90

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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.