Home / 839,809,378.80-1,259,714,068.20-622,131,145.20

Finding the Fourth Proportional to 839,809,378.80, 1,259,714,068.20 and 622,131,145.20

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Solution

The fourth proportional to 839,809,378.80, 1,259,714,068.20 and 622,131,145.20 is: 933,196,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,378.80 : 1,259,714,068.20 = 622,131,145.20 : x
  2. Step 2: Convert to fraction form
    839,809,378.80/1,259,714,068.20 = 622,131,145.20/x
  3. Step 3: Cross multiply
    839,809,378.80x = 1,259,714,068.20 × 622,131,145.20
  4. Step 4: Simplify right side
    839,809,378.80x = 783,707,355,873,816,960
  5. Step 5: Solve for x
    x = 783,707,355,873,816,960/839,809,378.80
  6. Step 6: Final answer
    x = 933,196,717.80

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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.