Home / 839,815,201.80-1,259,722,802.70-809,204,200.20

Finding the Fourth Proportional to 839,815,201.80, 1,259,722,802.70 and 809,204,200.20

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Solution

The fourth proportional to 839,815,201.80, 1,259,722,802.70 and 809,204,200.20 is: 1,213,806,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,815,201.80 : 1,259,722,802.70 = 809,204,200.20 : x
  2. Step 2: Convert to fraction form
    839,815,201.80/1,259,722,802.70 = 809,204,200.20/x
  3. Step 3: Cross multiply
    839,815,201.80x = 1,259,722,802.70 × 809,204,200.20
  4. Step 4: Simplify right side
    839,815,201.80x = 1,019,372,983,032,556,032
  5. Step 5: Solve for x
    x = 1,019,372,983,032,556,032/839,815,201.80
  6. Step 6: Final answer
    x = 1,213,806,300.30

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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.