Home / 620,504,768.97-856,347,772.28-356,237,760.11

Finding the Fourth Proportional to 620,504,768.97, 856,347,772.28 and 356,237,760.11

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Solution

The fourth proportional to 620,504,768.97, 856,347,772.28 and 356,237,760.11 is: 491,637,498.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,504,768.97 : 856,347,772.28 = 356,237,760.11 : x
  2. Step 2: Convert to fraction form
    620,504,768.97/856,347,772.28 = 356,237,760.11/x
  3. Step 3: Cross multiply
    620,504,768.97x = 856,347,772.28 × 356,237,760.11
  4. Step 4: Simplify right side
    620,504,768.97x = 305,063,412,266,152,640
  5. Step 5: Solve for x
    x = 305,063,412,266,152,640/620,504,768.97
  6. Step 6: Final answer
    x = 491,637,498.25

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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.