Finding the Fourth Proportional to 7,691,505.40, 11,522,051.70 and 6,745,943.80
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Solution
The fourth proportional to 7,691,505.40, 11,522,051.70 and 6,745,943.80 is: 10,105,578.71
Step by Step Solution
- Step 1: Write the proportion equation
7,691,505.40 : 11,522,051.70 = 6,745,943.80 : x - Step 2: Convert to fraction form
7,691,505.40/11,522,051.70 = 6,745,943.80/x - Step 3: Cross multiply
7,691,505.40x = 11,522,051.70 × 6,745,943.80 - Step 4: Simplify right side
7,691,505.40x = 77,727,113,228,894.45 - Step 5: Solve for x
x = 77,727,113,228,894.45/7,691,505.40 - Step 6: Final answer
x = 10,105,578.71
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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.