Home / 69,192,128,756.60-103,777,706,449.86-18,831,486,940.18

Finding the Fourth Proportional to 69,192,128,756.60, 103,777,706,449.86 and 18,831,486,940.18

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Solution

The fourth proportional to 69,192,128,756.60, 103,777,706,449.86 and 18,831,486,940.18 is: 28,244,376,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,192,128,756.60 : 103,777,706,449.86 = 18,831,486,940.18 : x
  2. Step 2: Convert to fraction form
    69,192,128,756.60/103,777,706,449.86 = 18,831,486,940.18/x
  3. Step 3: Cross multiply
    69,192,128,756.60x = 103,777,706,449.86 × 18,831,486,940.18
  4. Step 4: Simplify right side
    69,192,128,756.60x = 1,954,288,523,692,372,393,984
  5. Step 5: Solve for x
    x = 1,954,288,523,692,372,393,984/69,192,128,756.60
  6. Step 6: Final answer
    x = 28,244,376,330.25

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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.