Home / 117,504,187.80-176,256,281.70-81,672,379.80

Finding the Fourth Proportional to 117,504,187.80, 176,256,281.70 and 81,672,379.80

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Solution

The fourth proportional to 117,504,187.80, 176,256,281.70 and 81,672,379.80 is: 122,508,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,504,187.80 : 176,256,281.70 = 81,672,379.80 : x
  2. Step 2: Convert to fraction form
    117,504,187.80/176,256,281.70 = 81,672,379.80/x
  3. Step 3: Cross multiply
    117,504,187.80x = 176,256,281.70 × 81,672,379.80
  4. Step 4: Simplify right side
    117,504,187.80x = 14,395,269,981,138,188
  5. Step 5: Solve for x
    x = 14,395,269,981,138,188/117,504,187.80
  6. Step 6: Final answer
    x = 122,508,569.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.