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Finding the Fourth Proportional to 799,455,793.80, 1,197,392,100.30 and 656,128,561.80

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Solution

The fourth proportional to 799,455,793.80, 1,197,392,100.30 and 656,128,561.80 is: 982,722,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,455,793.80 : 1,197,392,100.30 = 656,128,561.80 : x
  2. Step 2: Convert to fraction form
    799,455,793.80/1,197,392,100.30 = 656,128,561.80/x
  3. Step 3: Cross multiply
    799,455,793.80x = 1,197,392,100.30 × 656,128,561.80
  4. Step 4: Simplify right side
    799,455,793.80x = 785,643,156,680,520,320
  5. Step 5: Solve for x
    x = 785,643,156,680,520,320/799,455,793.80
  6. Step 6: Final answer
    x = 982,722,450.41

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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.