Home / 295,231,325.70-442,846,988.55-278,509,815.30

Finding the Fourth Proportional to 295,231,325.70, 442,846,988.55 and 278,509,815.30

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Solution

The fourth proportional to 295,231,325.70, 442,846,988.55 and 278,509,815.30 is: 417,764,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,231,325.70 : 442,846,988.55 = 278,509,815.30 : x
  2. Step 2: Convert to fraction form
    295,231,325.70/442,846,988.55 = 278,509,815.30/x
  3. Step 3: Cross multiply
    295,231,325.70x = 442,846,988.55 × 278,509,815.30
  4. Step 4: Simplify right side
    295,231,325.70x = 123,337,232,987,221,728
  5. Step 5: Solve for x
    x = 123,337,232,987,221,728/295,231,325.70
  6. Step 6: Final answer
    x = 417,764,722.95

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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.