Home / 69,192,128,715.90-103,777,706,388.82-18,831,486,899.49

Finding the Fourth Proportional to 69,192,128,715.90, 103,777,706,388.82 and 18,831,486,899.49

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Solution

The fourth proportional to 69,192,128,715.90, 103,777,706,388.82 and 18,831,486,899.49 is: 28,244,376,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,192,128,715.90 : 103,777,706,388.82 = 18,831,486,899.49 : x
  2. Step 2: Convert to fraction form
    69,192,128,715.90/103,777,706,388.82 = 18,831,486,899.49/x
  3. Step 3: Cross multiply
    69,192,128,715.90x = 103,777,706,388.82 × 18,831,486,899.49
  4. Step 4: Simplify right side
    69,192,128,715.90x = 1,954,288,518,319,768,600,576
  5. Step 5: Solve for x
    x = 1,954,288,518,319,768,600,576/69,192,128,715.90
  6. Step 6: Final answer
    x = 28,244,376,269.21

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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.