Home / 205,190,915.38-283,157,978.13-117,083,312.26

Finding the Fourth Proportional to 205,190,915.38, 283,157,978.13 and 117,083,312.26

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Solution

The fourth proportional to 205,190,915.38, 283,157,978.13 and 117,083,312.26 is: 161,571,841.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,190,915.38 : 283,157,978.13 = 117,083,312.26 : x
  2. Step 2: Convert to fraction form
    205,190,915.38/283,157,978.13 = 117,083,312.26/x
  3. Step 3: Cross multiply
    205,190,915.38x = 283,157,978.13 × 117,083,312.26
  4. Step 4: Simplify right side
    205,190,915.38x = 33,153,073,972,305,040
  5. Step 5: Solve for x
    x = 33,153,073,972,305,040/205,190,915.38
  6. Step 6: Final answer
    x = 161,571,841.09

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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.