Finding the Fourth Proportional to 7,764,605.80, 11,646,908.70 and 2,715,389.80
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Solution
The fourth proportional to 7,764,605.80, 11,646,908.70 and 2,715,389.80 is: 4,073,084.70
Step by Step Solution
- Step 1: Write the proportion equation
7,764,605.80 : 11,646,908.70 = 2,715,389.80 : x - Step 2: Convert to fraction form
7,764,605.80/11,646,908.70 = 2,715,389.80/x - Step 3: Cross multiply
7,764,605.80x = 11,646,908.70 × 2,715,389.80 - Step 4: Simplify right side
7,764,605.80x = 31,625,897,085,511.25 - Step 5: Solve for x
x = 31,625,897,085,511.25/7,764,605.80 - Step 6: Final answer
x = 4,073,084.70
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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.