Home / 120,013,376.88-165,619,255.24-65,009,233.36

Finding the Fourth Proportional to 120,013,376.88, 165,619,255.24 and 65,009,233.36

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Solution

The fourth proportional to 120,013,376.88, 165,619,255.24 and 65,009,233.36 is: 89,713,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,013,376.88 : 165,619,255.24 = 65,009,233.36 : x
  2. Step 2: Convert to fraction form
    120,013,376.88/165,619,255.24 = 65,009,233.36/x
  3. Step 3: Cross multiply
    120,013,376.88x = 165,619,255.24 × 65,009,233.36
  4. Step 4: Simplify right side
    120,013,376.88x = 10,766,780,812,806,564
  5. Step 5: Solve for x
    x = 10,766,780,812,806,564/120,013,376.88
  6. Step 6: Final answer
    x = 89,713,172.75

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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.