Finding the Fourth Proportional to 69,192,128,762.10, 103,777,706,458.11 and 18,831,486,945.70
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Solution
The fourth proportional to 69,192,128,762.10, 103,777,706,458.11 and 18,831,486,945.70 is: 28,244,376,338.53
Step by Step Solution
- Step 1: Write the proportion equation
69,192,128,762.10 : 103,777,706,458.11 = 18,831,486,945.70 : x - Step 2: Convert to fraction form
69,192,128,762.10/103,777,706,458.11 = 18,831,486,945.70/x - Step 3: Cross multiply
69,192,128,762.10x = 103,777,706,458.11 × 18,831,486,945.70 - Step 4: Simplify right side
69,192,128,762.10x = 1,954,288,524,420,585,095,168 - Step 5: Solve for x
x = 1,954,288,524,420,585,095,168/69,192,128,762.10 - Step 6: Final answer
x = 28,244,376,338.53
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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.