Finding the Fourth Proportional to 10,366,991.20, 15,545,821.20 and 3,975,119.20
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Solution
The fourth proportional to 10,366,991.20, 15,545,821.20 and 3,975,119.20 is: 5,960,889.82
Step by Step Solution
- Step 1: Write the proportion equation
10,366,991.20 : 15,545,821.20 = 3,975,119.20 : x - Step 2: Convert to fraction form
10,366,991.20/15,545,821.20 = 3,975,119.20/x - Step 3: Cross multiply
10,366,991.20x = 15,545,821.20 × 3,975,119.20 - Step 4: Simplify right side
10,366,991.20x = 61,796,492,331,887.04 - Step 5: Solve for x
x = 61,796,492,331,887.04/10,366,991.20 - Step 6: Final answer
x = 5,960,889.82
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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.