Finding the Fourth Proportional to 69,192,128,757.60, 103,777,706,451.36 and 18,831,486,941.18
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Solution
The fourth proportional to 69,192,128,757.60, 103,777,706,451.36 and 18,831,486,941.18 is: 28,244,376,331.75
Step by Step Solution
- Step 1: Write the proportion equation
69,192,128,757.60 : 103,777,706,451.36 = 18,831,486,941.18 : x - Step 2: Convert to fraction form
69,192,128,757.60/103,777,706,451.36 = 18,831,486,941.18/x - Step 3: Cross multiply
69,192,128,757.60x = 103,777,706,451.36 × 18,831,486,941.18 - Step 4: Simplify right side
69,192,128,757.60x = 1,954,288,523,824,397,287,424 - Step 5: Solve for x
x = 1,954,288,523,824,397,287,424/69,192,128,757.60 - Step 6: Final answer
x = 28,244,376,331.75
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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.