Home / 69,192,128,755.61-103,777,706,448.36-18,831,486,939.20

Finding the Fourth Proportional to 69,192,128,755.61, 103,777,706,448.36 and 18,831,486,939.20

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Solution

The fourth proportional to 69,192,128,755.61, 103,777,706,448.36 and 18,831,486,939.20 is: 28,244,376,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,192,128,755.61 : 103,777,706,448.36 = 18,831,486,939.20 : x
  2. Step 2: Convert to fraction form
    69,192,128,755.61/103,777,706,448.36 = 18,831,486,939.20/x
  3. Step 3: Cross multiply
    69,192,128,755.61x = 103,777,706,448.36 × 18,831,486,939.20
  4. Step 4: Simplify right side
    69,192,128,755.61x = 1,954,288,523,561,904,111,616
  5. Step 5: Solve for x
    x = 1,954,288,523,561,904,111,616/69,192,128,755.61
  6. Step 6: Final answer
    x = 28,244,376,328.77

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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.