Home / 839,815,234.80-1,259,722,852.20-809,204,233.20

Finding the Fourth Proportional to 839,815,234.80, 1,259,722,852.20 and 809,204,233.20

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Solution

The fourth proportional to 839,815,234.80, 1,259,722,852.20 and 809,204,233.20 is: 1,213,806,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,815,234.80 : 1,259,722,852.20 = 809,204,233.20 : x
  2. Step 2: Convert to fraction form
    839,815,234.80/1,259,722,852.20 = 809,204,233.20/x
  3. Step 3: Cross multiply
    839,815,234.80x = 1,259,722,852.20 × 809,204,233.20
  4. Step 4: Simplify right side
    839,815,234.80x = 1,019,373,064,659,017,984
  5. Step 5: Solve for x
    x = 1,019,373,064,659,017,984/839,815,234.80
  6. Step 6: Final answer
    x = 1,213,806,349.80

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1.5x scale

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.