Home / 643,946,064.75-965,714,326.26-207,145,074.48

Finding the Fourth Proportional to 643,946,064.75, 965,714,326.26 and 207,145,074.48

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Solution

The fourth proportional to 643,946,064.75, 965,714,326.26 and 207,145,074.48 is: 310,651,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,946,064.75 : 965,714,326.26 = 207,145,074.48 : x
  2. Step 2: Convert to fraction form
    643,946,064.75/965,714,326.26 = 207,145,074.48/x
  3. Step 3: Cross multiply
    643,946,064.75x = 965,714,326.26 × 207,145,074.48
  4. Step 4: Simplify right side
    643,946,064.75x = 200,042,966,039,530,720
  5. Step 5: Solve for x
    x = 200,042,966,039,530,720/643,946,064.75
  6. Step 6: Final answer
    x = 310,651,740.87

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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.