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Finding the Fourth Proportional to 644,533,946.87, 964,873,906.00 and 394,752,722.04

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Solution

The fourth proportional to 644,533,946.87, 964,873,906.00 and 394,752,722.04 is: 590,948,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,533,946.87 : 964,873,906.00 = 394,752,722.04 : x
  2. Step 2: Convert to fraction form
    644,533,946.87/964,873,906.00 = 394,752,722.04/x
  3. Step 3: Cross multiply
    644,533,946.87x = 964,873,906.00 × 394,752,722.04
  4. Step 4: Simplify right side
    644,533,946.87x = 380,886,600,817,880,192
  5. Step 5: Solve for x
    x = 380,886,600,817,880,192/644,533,946.87
  6. Step 6: Final answer
    x = 590,948,859.51

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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.