Home / 643,946,063.25-965,714,324.01-207,145,072.98

Finding the Fourth Proportional to 643,946,063.25, 965,714,324.01 and 207,145,072.98

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Solution

The fourth proportional to 643,946,063.25, 965,714,324.01 and 207,145,072.98 is: 310,651,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,946,063.25 : 965,714,324.01 = 207,145,072.98 : x
  2. Step 2: Convert to fraction form
    643,946,063.25/965,714,324.01 = 207,145,072.98/x
  3. Step 3: Cross multiply
    643,946,063.25x = 965,714,324.01 × 207,145,072.98
  4. Step 4: Simplify right side
    643,946,063.25x = 200,042,964,125,272,256
  5. Step 5: Solve for x
    x = 200,042,964,125,272,256/643,946,063.25
  6. Step 6: Final answer
    x = 310,651,738.62

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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.