Home / 100,675,935.84-138,854,083.52-65,405,105.04

Finding the Fourth Proportional to 100,675,935.84, 138,854,083.52 and 65,405,105.04

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Solution

The fourth proportional to 100,675,935.84, 138,854,083.52 and 65,405,105.04 is: 90,207,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,675,935.84 : 138,854,083.52 = 65,405,105.04 : x
  2. Step 2: Convert to fraction form
    100,675,935.84/138,854,083.52 = 65,405,105.04/x
  3. Step 3: Cross multiply
    100,675,935.84x = 138,854,083.52 × 65,405,105.04
  4. Step 4: Simplify right side
    100,675,935.84x = 9,081,765,917,858,534
  5. Step 5: Solve for x
    x = 9,081,765,917,858,534/100,675,935.84
  6. Step 6: Final answer
    x = 90,207,911.57

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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.