Home / 120,649,010.18-180,831,797.66-55,815,865.38

Finding the Fourth Proportional to 120,649,010.18, 180,831,797.66 and 55,815,865.38

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Solution

The fourth proportional to 120,649,010.18, 180,831,797.66 and 55,815,865.38 is: 83,658,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,649,010.18 : 180,831,797.66 = 55,815,865.38 : x
  2. Step 2: Convert to fraction form
    120,649,010.18/180,831,797.66 = 55,815,865.38/x
  3. Step 3: Cross multiply
    120,649,010.18x = 180,831,797.66 × 55,815,865.38
  4. Step 4: Simplify right side
    120,649,010.18x = 10,093,283,274,753,498
  5. Step 5: Solve for x
    x = 10,093,283,274,753,498/120,649,010.18
  6. Step 6: Final answer
    x = 83,658,235.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.