Home / 157,987,645.20-236,981,467.80-138,855,769.20

Finding the Fourth Proportional to 157,987,645.20, 236,981,467.80 and 138,855,769.20

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Solution

The fourth proportional to 157,987,645.20, 236,981,467.80 and 138,855,769.20 is: 208,283,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,987,645.20 : 236,981,467.80 = 138,855,769.20 : x
  2. Step 2: Convert to fraction form
    157,987,645.20/236,981,467.80 = 138,855,769.20/x
  3. Step 3: Cross multiply
    157,987,645.20x = 236,981,467.80 × 138,855,769.20
  4. Step 4: Simplify right side
    157,987,645.20x = 32,906,243,997,514,032
  5. Step 5: Solve for x
    x = 32,906,243,997,514,032/157,987,645.20
  6. Step 6: Final answer
    x = 208,283,653.80

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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.