Finding the Fourth Proportional to 7,728,048,121.80, 11,592,072,182.70 and 7,728,048,121.80
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Solution
The fourth proportional to 7,728,048,121.80, 11,592,072,182.70 and 7,728,048,121.80 is: 11,592,072,182.70
Step by Step Solution
- Step 1: Write the proportion equation
7,728,048,121.80 : 11,592,072,182.70 = 7,728,048,121.80 : x - Step 2: Convert to fraction form
7,728,048,121.80/11,592,072,182.70 = 7,728,048,121.80/x - Step 3: Cross multiply
7,728,048,121.80x = 11,592,072,182.70 × 7,728,048,121.80 - Step 4: Simplify right side
7,728,048,121.80x = 89,584,091,659,284,774,912 - Step 5: Solve for x
x = 89,584,091,659,284,774,912/7,728,048,121.80 - Step 6: Final answer
x = 11,592,072,182.70
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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.