Home / 131,540,958.36-181,514,223.90-78,607,161.54

Finding the Fourth Proportional to 131,540,958.36, 181,514,223.90 and 78,607,161.54

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Solution

The fourth proportional to 131,540,958.36, 181,514,223.90 and 78,607,161.54 is: 108,470,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,540,958.36 : 181,514,223.90 = 78,607,161.54 : x
  2. Step 2: Convert to fraction form
    131,540,958.36/181,514,223.90 = 78,607,161.54/x
  3. Step 3: Cross multiply
    131,540,958.36x = 181,514,223.90 × 78,607,161.54
  4. Step 4: Simplify right side
    131,540,958.36x = 14,268,317,919,915,030
  5. Step 5: Solve for x
    x = 14,268,317,919,915,030/131,540,958.36
  6. Step 6: Final answer
    x = 108,470,533.42

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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.