Home / 157,915,736.48-217,906,939.29-87,340,131.82

Finding the Fourth Proportional to 157,915,736.48, 217,906,939.29 and 87,340,131.82

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Solution

The fourth proportional to 157,915,736.48, 217,906,939.29 and 87,340,131.82 is: 120,520,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,915,736.48 : 217,906,939.29 = 87,340,131.82 : x
  2. Step 2: Convert to fraction form
    157,915,736.48/217,906,939.29 = 87,340,131.82/x
  3. Step 3: Cross multiply
    157,915,736.48x = 217,906,939.29 × 87,340,131.82
  4. Step 4: Simplify right side
    157,915,736.48x = 19,032,020,802,081,336
  5. Step 5: Solve for x
    x = 19,032,020,802,081,336/157,915,736.48
  6. Step 6: Final answer
    x = 120,520,102.85

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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.