Home / 167,761,926-231,392,200.40-111,979,221.28

Finding the Fourth Proportional to 167,761,926, 231,392,200.40 and 111,979,221.28

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Solution

The fourth proportional to 167,761,926, 231,392,200.40 and 111,979,221.28 is: 154,451,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,761,926 : 231,392,200.40 = 111,979,221.28 : x
  2. Step 2: Convert to fraction form
    167,761,926/231,392,200.40 = 111,979,221.28/x
  3. Step 3: Cross multiply
    167,761,926x = 231,392,200.40 × 111,979,221.28
  4. Step 4: Simplify right side
    167,761,926x = 25,911,118,411,057,704
  5. Step 5: Solve for x
    x = 25,911,118,411,057,704/167,761,926
  6. Step 6: Final answer
    x = 154,451,722.32

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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.