Home / 670,311,387.05-1,005,504,846.41-203,987,976.71

Finding the Fourth Proportional to 670,311,387.05, 1,005,504,846.41 and 203,987,976.71

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Solution

The fourth proportional to 670,311,387.05, 1,005,504,846.41 and 203,987,976.71 is: 305,993,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,311,387.05 : 1,005,504,846.41 = 203,987,976.71 : x
  2. Step 2: Convert to fraction form
    670,311,387.05/1,005,504,846.41 = 203,987,976.71/x
  3. Step 3: Cross multiply
    670,311,387.05x = 1,005,504,846.41 × 203,987,976.71
  4. Step 4: Simplify right side
    670,311,387.05x = 205,110,899,186,757,664
  5. Step 5: Solve for x
    x = 205,110,899,186,757,664/670,311,387.05
  6. Step 6: Final answer
    x = 305,993,457.89

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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.