Home / 682,384,472,999.25-941,720,174,085.80-377,890,128,980.68

Finding the Fourth Proportional to 682,384,472,999.25, 941,720,174,085.80 and 377,890,128,980.68

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Solution

The fourth proportional to 682,384,472,999.25, 941,720,174,085.80 and 377,890,128,980.68 is: 521,504,770,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,384,472,999.25 : 941,720,174,085.80 = 377,890,128,980.68 : x
  2. Step 2: Convert to fraction form
    682,384,472,999.25/941,720,174,085.80 = 377,890,128,980.68/x
  3. Step 3: Cross multiply
    682,384,472,999.25x = 941,720,174,085.80 × 377,890,128,980.68
  4. Step 4: Simplify right side
    682,384,472,999.25x = 355,866,758,048,991,418,515,456
  5. Step 5: Solve for x
    x = 355,866,758,048,991,418,515,456/682,384,472,999.25
  6. Step 6: Final answer
    x = 521,504,770,594.89

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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.