Home / 120,220,941.25-165,905,218.58-65,216,797.75

Finding the Fourth Proportional to 120,220,941.25, 165,905,218.58 and 65,216,797.75

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Solution

The fourth proportional to 120,220,941.25, 165,905,218.58 and 65,216,797.75 is: 89,999,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,220,941.25 : 165,905,218.58 = 65,216,797.75 : x
  2. Step 2: Convert to fraction form
    120,220,941.25/165,905,218.58 = 65,216,797.75/x
  3. Step 3: Cross multiply
    120,220,941.25x = 165,905,218.58 × 65,216,797.75
  4. Step 4: Simplify right side
    120,220,941.25x = 10,819,807,085,682,698
  5. Step 5: Solve for x
    x = 10,819,807,085,682,698/120,220,941.25
  6. Step 6: Final answer
    x = 89,999,354.30

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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.