Finding the Fourth Proportional to 7,638,767,553.20, 11,458,151,329.80 and 7,277,175,096.80
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Solution
The fourth proportional to 7,638,767,553.20, 11,458,151,329.80 and 7,277,175,096.80 is: 10,915,762,645.20
Step by Step Solution
- Step 1: Write the proportion equation
7,638,767,553.20 : 11,458,151,329.80 = 7,277,175,096.80 : x - Step 2: Convert to fraction form
7,638,767,553.20/11,458,151,329.80 = 7,277,175,096.80/x - Step 3: Cross multiply
7,638,767,553.20x = 11,458,151,329.80 × 7,277,175,096.80 - Step 4: Simplify right side
7,638,767,553.20x = 83,382,973,512,586,362,880 - Step 5: Solve for x
x = 83,382,973,512,586,362,880/7,638,767,553.20 - Step 6: Final answer
x = 10,915,762,645.20
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1.5x scale
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.