Home / 120,118,331.39-165,752,983.40-69,891,842.48

Finding the Fourth Proportional to 120,118,331.39, 165,752,983.40 and 69,891,842.48

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Solution

The fourth proportional to 120,118,331.39, 165,752,983.40 and 69,891,842.48 is: 96,444,741.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,118,331.39 : 165,752,983.40 = 69,891,842.48 : x
  2. Step 2: Convert to fraction form
    120,118,331.39/165,752,983.40 = 69,891,842.48/x
  3. Step 3: Cross multiply
    120,118,331.39x = 165,752,983.40 × 69,891,842.48
  4. Step 4: Simplify right side
    120,118,331.39x = 11,584,781,405,204,630
  5. Step 5: Solve for x
    x = 11,584,781,405,204,630/120,118,331.39
  6. Step 6: Final answer
    x = 96,444,741.38

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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.