Home / 134,623,951.48-185,795,815.38-78,121,144.36

Finding the Fourth Proportional to 134,623,951.48, 185,795,815.38 and 78,121,144.36

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Solution

The fourth proportional to 134,623,951.48, 185,795,815.38 and 78,121,144.36 is: 107,815,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,623,951.48 : 185,795,815.38 = 78,121,144.36 : x
  2. Step 2: Convert to fraction form
    134,623,951.48/185,795,815.38 = 78,121,144.36/x
  3. Step 3: Cross multiply
    134,623,951.48x = 185,795,815.38 × 78,121,144.36
  4. Step 4: Simplify right side
    134,623,951.48x = 14,514,581,714,784,888
  5. Step 5: Solve for x
    x = 14,514,581,714,784,888/134,623,951.48
  6. Step 6: Final answer
    x = 107,815,745.68

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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.