Home / 188,291,391.40-259,835,492.82-103,517,893.08

Finding the Fourth Proportional to 188,291,391.40, 259,835,492.82 and 103,517,893.08

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Solution

The fourth proportional to 188,291,391.40, 259,835,492.82 and 103,517,893.08 is: 142,851,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,291,391.40 : 259,835,492.82 = 103,517,893.08 : x
  2. Step 2: Convert to fraction form
    188,291,391.40/259,835,492.82 = 103,517,893.08/x
  3. Step 3: Cross multiply
    188,291,391.40x = 259,835,492.82 × 103,517,893.08
  4. Step 4: Simplify right side
    188,291,391.40x = 26,897,622,764,129,868
  5. Step 5: Solve for x
    x = 26,897,622,764,129,868/188,291,391.40
  6. Step 6: Final answer
    x = 142,851,048.92

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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.