Home / 839,809,109.80-1,259,713,664.70-809,198,108.20

Finding the Fourth Proportional to 839,809,109.80, 1,259,713,664.70 and 809,198,108.20

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Solution

The fourth proportional to 839,809,109.80, 1,259,713,664.70 and 809,198,108.20 is: 1,213,797,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,109.80 : 1,259,713,664.70 = 809,198,108.20 : x
  2. Step 2: Convert to fraction form
    839,809,109.80/1,259,713,664.70 = 809,198,108.20/x
  3. Step 3: Cross multiply
    839,809,109.80x = 1,259,713,664.70 × 809,198,108.20
  4. Step 4: Simplify right side
    839,809,109.80x = 1,019,357,914,348,929,280
  5. Step 5: Solve for x
    x = 1,019,357,914,348,929,280/839,809,109.80
  6. Step 6: Final answer
    x = 1,213,797,162.30

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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.