Home / 120,013,593.40-165,619,553.88-65,009,449.36

Finding the Fourth Proportional to 120,013,593.40, 165,619,553.88 and 65,009,449.36

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Solution

The fourth proportional to 120,013,593.40, 165,619,553.88 and 65,009,449.36 is: 89,713,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,013,593.40 : 165,619,553.88 = 65,009,449.36 : x
  2. Step 2: Convert to fraction form
    120,013,593.40/165,619,553.88 = 65,009,449.36/x
  3. Step 3: Cross multiply
    120,013,593.40x = 165,619,553.88 × 65,009,449.36
  4. Step 4: Simplify right side
    120,013,593.40x = 10,766,836,000,987,652
  5. Step 5: Solve for x
    x = 10,766,836,000,987,652/120,013,593.40
  6. Step 6: Final answer
    x = 89,713,470.75

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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.