Finding the Fourth Proportional to 129,057,611,329.35, 178,100,057,331.21 and 70,397,711,650.17
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Solution
The fourth proportional to 129,057,611,329.35, 178,100,057,331.21 and 70,397,711,650.17 is: 97,149,144,104.99
Step by Step Solution
- Step 1: Write the proportion equation
129,057,611,329.35 : 178,100,057,331.21 = 70,397,711,650.17 : x - Step 2: Convert to fraction form
129,057,611,329.35/178,100,057,331.21 = 70,397,711,650.17/x - Step 3: Cross multiply
129,057,611,329.35x = 178,100,057,331.21 × 70,397,711,650.17 - Step 4: Simplify right side
129,057,611,329.35x = 12,537,836,480,881,265,475,584 - Step 5: Solve for x
x = 12,537,836,480,881,265,475,584/129,057,611,329.35 - Step 6: Final answer
x = 97,149,144,104.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.