Home / 156,965,395.97-216,632,872.96-90,010,556.03

Finding the Fourth Proportional to 156,965,395.97, 216,632,872.96 and 90,010,556.03

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Solution

The fourth proportional to 156,965,395.97, 216,632,872.96 and 90,010,556.03 is: 124,226,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965,395.97 : 216,632,872.96 = 90,010,556.03 : x
  2. Step 2: Convert to fraction form
    156,965,395.97/216,632,872.96 = 90,010,556.03/x
  3. Step 3: Cross multiply
    156,965,395.97x = 216,632,872.96 × 90,010,556.03
  4. Step 4: Simplify right side
    156,965,395.97x = 19,499,245,349,822,508
  5. Step 5: Solve for x
    x = 19,499,245,349,822,508/156,965,395.97
  6. Step 6: Final answer
    x = 124,226,395.44

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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.