Home / 839,810,097.20-1,259,715,145.80-768,384,426.80

Finding the Fourth Proportional to 839,810,097.20, 1,259,715,145.80 and 768,384,426.80

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Solution

The fourth proportional to 839,810,097.20, 1,259,715,145.80 and 768,384,426.80 is: 1,152,576,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,097.20 : 1,259,715,145.80 = 768,384,426.80 : x
  2. Step 2: Convert to fraction form
    839,810,097.20/1,259,715,145.80 = 768,384,426.80/x
  3. Step 3: Cross multiply
    839,810,097.20x = 1,259,715,145.80 × 768,384,426.80
  4. Step 4: Simplify right side
    839,810,097.20x = 967,945,500,236,811,392
  5. Step 5: Solve for x
    x = 967,945,500,236,811,392/839,810,097.20
  6. Step 6: Final answer
    x = 1,152,576,640.20

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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.