Finding the Fourth Proportional to 1,157,541,721.80, 1,738,328,121.90 and 613,346,137.80
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Solution
The fourth proportional to 1,157,541,721.80, 1,738,328,121.90 and 613,346,137.80 is: 921,087,179.60
Step by Step Solution
- Step 1: Write the proportion equation
1,157,541,721.80 : 1,738,328,121.90 = 613,346,137.80 : x - Step 2: Convert to fraction form
1,157,541,721.80/1,738,328,121.90 = 613,346,137.80/x - Step 3: Cross multiply
1,157,541,721.80x = 1,738,328,121.90 × 613,346,137.80 - Step 4: Simplify right side
1,157,541,721.80x = 1,066,196,839,796,492,544 - Step 5: Solve for x
x = 1,066,196,839,796,492,544/1,157,541,721.80 - Step 6: Final answer
x = 921,087,179.60
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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.