Finding the Fourth Proportional to 10,463,720.80, 15,695,581.20 and 9,875,855.20
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Solution
The fourth proportional to 10,463,720.80, 15,695,581.20 and 9,875,855.20 is: 14,813,782.80
Step by Step Solution
- Step 1: Write the proportion equation
10,463,720.80 : 15,695,581.20 = 9,875,855.20 : x - Step 2: Convert to fraction form
10,463,720.80/15,695,581.20 = 9,875,855.20/x - Step 3: Cross multiply
10,463,720.80x = 15,695,581.20 × 9,875,855.20 - Step 4: Simplify right side
10,463,720.80x = 155,007,287,211,042.22 - Step 5: Solve for x
x = 155,007,287,211,042.22/10,463,720.80 - Step 6: Final answer
x = 14,813,782.80
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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.