Finding the Fourth Proportional to 69,192,128,761.35, 103,777,706,456.99 and 18,831,486,944.95
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Solution
The fourth proportional to 69,192,128,761.35, 103,777,706,456.99 and 18,831,486,944.95 is: 28,244,376,337.40
Step by Step Solution
- Step 1: Write the proportion equation
69,192,128,761.35 : 103,777,706,456.99 = 18,831,486,944.95 : x - Step 2: Convert to fraction form
69,192,128,761.35/103,777,706,456.99 = 18,831,486,944.95/x - Step 3: Cross multiply
69,192,128,761.35x = 103,777,706,456.99 × 18,831,486,944.95 - Step 4: Simplify right side
69,192,128,761.35x = 1,954,288,524,321,660,600,320 - Step 5: Solve for x
x = 1,954,288,524,321,660,600,320/69,192,128,761.35 - Step 6: Final answer
x = 28,244,376,337.40
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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.