Home / 69,192,128,738.26-103,777,706,422.32-18,831,486,921.85

Finding the Fourth Proportional to 69,192,128,738.26, 103,777,706,422.32 and 18,831,486,921.85

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Solution

The fourth proportional to 69,192,128,738.26, 103,777,706,422.32 and 18,831,486,921.85 is: 28,244,376,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,192,128,738.26 : 103,777,706,422.32 = 18,831,486,921.85 : x
  2. Step 2: Convert to fraction form
    69,192,128,738.26/103,777,706,422.32 = 18,831,486,921.85/x
  3. Step 3: Cross multiply
    69,192,128,738.26x = 103,777,706,422.32 × 18,831,486,921.85
  4. Step 4: Simplify right side
    69,192,128,738.26x = 1,954,288,521,271,507,943,424
  5. Step 5: Solve for x
    x = 1,954,288,521,271,507,943,424/69,192,128,738.26
  6. Step 6: Final answer
    x = 28,244,376,302.75

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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.