Home / 839,810,081.70-1,259,715,122.55-768,384,411.30

Finding the Fourth Proportional to 839,810,081.70, 1,259,715,122.55 and 768,384,411.30

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Solution

The fourth proportional to 839,810,081.70, 1,259,715,122.55 and 768,384,411.30 is: 1,152,576,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,081.70 : 1,259,715,122.55 = 768,384,411.30 : x
  2. Step 2: Convert to fraction form
    839,810,081.70/1,259,715,122.55 = 768,384,411.30/x
  3. Step 3: Cross multiply
    839,810,081.70x = 1,259,715,122.55 × 768,384,411.30
  4. Step 4: Simplify right side
    839,810,081.70x = 967,945,462,846,289,024
  5. Step 5: Solve for x
    x = 967,945,462,846,289,024/839,810,081.70
  6. Step 6: Final answer
    x = 1,152,576,616.95

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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.