Home / 69,192,128,761.85-103,777,706,457.74-18,831,486,945.45

Finding the Fourth Proportional to 69,192,128,761.85, 103,777,706,457.74 and 18,831,486,945.45

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Solution

The fourth proportional to 69,192,128,761.85, 103,777,706,457.74 and 18,831,486,945.45 is: 28,244,376,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,192,128,761.85 : 103,777,706,457.74 = 18,831,486,945.45 : x
  2. Step 2: Convert to fraction form
    69,192,128,761.85/103,777,706,457.74 = 18,831,486,945.45/x
  3. Step 3: Cross multiply
    69,192,128,761.85x = 103,777,706,457.74 × 18,831,486,945.45
  4. Step 4: Simplify right side
    69,192,128,761.85x = 1,954,288,524,387,673,178,112
  5. Step 5: Solve for x
    x = 1,954,288,524,387,673,178,112/69,192,128,761.85
  6. Step 6: Final answer
    x = 28,244,376,338.15

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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.