Home / 541,792,986.76-747,661,604.40-318,789,112.60

Finding the Fourth Proportional to 541,792,986.76, 747,661,604.40 and 318,789,112.60

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Solution

The fourth proportional to 541,792,986.76, 747,661,604.40 and 318,789,112.60 is: 439,921,492.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,792,986.76 : 747,661,604.40 = 318,789,112.60 : x
  2. Step 2: Convert to fraction form
    541,792,986.76/747,661,604.40 = 318,789,112.60/x
  3. Step 3: Cross multiply
    541,792,986.76x = 747,661,604.40 × 318,789,112.60
  4. Step 4: Simplify right side
    541,792,986.76x = 238,346,379,391,768,256
  5. Step 5: Solve for x
    x = 238,346,379,391,768,256/541,792,986.76
  6. Step 6: Final answer
    x = 439,921,492.56

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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.