Home / 839,808,984.80-1,259,713,477.20-809,197,983.20

Finding the Fourth Proportional to 839,808,984.80, 1,259,713,477.20 and 809,197,983.20

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Solution

The fourth proportional to 839,808,984.80, 1,259,713,477.20 and 809,197,983.20 is: 1,213,796,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,984.80 : 1,259,713,477.20 = 809,197,983.20 : x
  2. Step 2: Convert to fraction form
    839,808,984.80/1,259,713,477.20 = 809,197,983.20/x
  3. Step 3: Cross multiply
    839,808,984.80x = 1,259,713,477.20 × 809,197,983.20
  4. Step 4: Simplify right side
    839,808,984.80x = 1,019,357,605,160,099,328
  5. Step 5: Solve for x
    x = 1,019,357,605,160,099,328/839,808,984.80
  6. Step 6: Final answer
    x = 1,213,796,974.80

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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.