Home / 1,292,858,063.28-1,939,559,456.48-419,391,229.32

Finding the Fourth Proportional to 1,292,858,063.28, 1,939,559,456.48 and 419,391,229.32

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Solution

The fourth proportional to 1,292,858,063.28, 1,939,559,456.48 and 419,391,229.32 is: 629,175,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,858,063.28 : 1,939,559,456.48 = 419,391,229.32 : x
  2. Step 2: Convert to fraction form
    1,292,858,063.28/1,939,559,456.48 = 419,391,229.32/x
  3. Step 3: Cross multiply
    1,292,858,063.28x = 1,939,559,456.48 × 419,391,229.32
  4. Step 4: Simplify right side
    1,292,858,063.28x = 813,434,224,790,281,216
  5. Step 5: Solve for x
    x = 813,434,224,790,281,216/1,292,858,063.28
  6. Step 6: Final answer
    x = 629,175,195.56

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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.