Home / 131,540,961.36-181,514,228.04-78,607,164.54

Finding the Fourth Proportional to 131,540,961.36, 181,514,228.04 and 78,607,164.54

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Solution

The fourth proportional to 131,540,961.36, 181,514,228.04 and 78,607,164.54 is: 108,470,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,540,961.36 : 181,514,228.04 = 78,607,164.54 : x
  2. Step 2: Convert to fraction form
    131,540,961.36/181,514,228.04 = 78,607,164.54/x
  3. Step 3: Cross multiply
    131,540,961.36x = 181,514,228.04 × 78,607,164.54
  4. Step 4: Simplify right side
    131,540,961.36x = 14,268,318,789,891,362
  5. Step 5: Solve for x
    x = 14,268,318,789,891,362/131,540,961.36
  6. Step 6: Final answer
    x = 108,470,537.56

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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.