Home / 120,267,823.70-165,969,596.72-65,263,680.20

Finding the Fourth Proportional to 120,267,823.70, 165,969,596.72 and 65,263,680.20

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Solution

The fourth proportional to 120,267,823.70, 165,969,596.72 and 65,263,680.20 is: 90,063,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,267,823.70 : 165,969,596.72 = 65,263,680.20 : x
  2. Step 2: Convert to fraction form
    120,267,823.70/165,969,596.72 = 65,263,680.20/x
  3. Step 3: Cross multiply
    120,267,823.70x = 165,969,596.72 × 65,263,680.20
  4. Step 4: Simplify right side
    120,267,823.70x = 10,831,786,682,534,770
  5. Step 5: Solve for x
    x = 10,831,786,682,534,770/120,267,823.70
  6. Step 6: Final answer
    x = 90,063,878.68

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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.