Home / 141,542,703.28-195,322,647.66-78,822,036.40

Finding the Fourth Proportional to 141,542,703.28, 195,322,647.66 and 78,822,036.40

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Solution

The fourth proportional to 141,542,703.28, 195,322,647.66 and 78,822,036.40 is: 108,770,911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,542,703.28 : 195,322,647.66 = 78,822,036.40 : x
  2. Step 2: Convert to fraction form
    141,542,703.28/195,322,647.66 = 78,822,036.40/x
  3. Step 3: Cross multiply
    141,542,703.28x = 195,322,647.66 × 78,822,036.40
  4. Step 4: Simplify right side
    141,542,703.28x = 15,395,728,843,600,896
  5. Step 5: Solve for x
    x = 15,395,728,843,600,896/141,542,703.28
  6. Step 6: Final answer
    x = 108,770,911.44

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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.