Home / 622,022,488.70-858,385,231.52-339,764,821.50

Finding the Fourth Proportional to 622,022,488.70, 858,385,231.52 and 339,764,821.50

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Solution

The fourth proportional to 622,022,488.70, 858,385,231.52 and 339,764,821.50 is: 468,872,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,022,488.70 : 858,385,231.52 = 339,764,821.50 : x
  2. Step 2: Convert to fraction form
    622,022,488.70/858,385,231.52 = 339,764,821.50/x
  3. Step 3: Cross multiply
    622,022,488.70x = 858,385,231.52 × 339,764,821.50
  4. Step 4: Simplify right side
    622,022,488.70x = 291,649,104,965,628,992
  5. Step 5: Solve for x
    x = 291,649,104,965,628,992/622,022,488.70
  6. Step 6: Final answer
    x = 468,872,283.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.