Home / 161,421,721.26-222,761,429.04-90,857,291.46

Finding the Fourth Proportional to 161,421,721.26, 222,761,429.04 and 90,857,291.46

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Solution

The fourth proportional to 161,421,721.26, 222,761,429.04 and 90,857,291.46 is: 125,382,754.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,421,721.26 : 222,761,429.04 = 90,857,291.46 : x
  2. Step 2: Convert to fraction form
    161,421,721.26/222,761,429.04 = 90,857,291.46/x
  3. Step 3: Cross multiply
    161,421,721.26x = 222,761,429.04 × 90,857,291.46
  4. Step 4: Simplify right side
    161,421,721.26x = 20,239,500,084,333,384
  5. Step 5: Solve for x
    x = 20,239,500,084,333,384/161,421,721.26
  6. Step 6: Final answer
    x = 125,382,754.73

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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.