Finding the Fourth Proportional to 7,643,802.74, 11,465,704.01 and 2,786,473.47
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Solution
The fourth proportional to 7,643,802.74, 11,465,704.01 and 2,786,473.47 is: 4,179,710.17
Step by Step Solution
- Step 1: Write the proportion equation
7,643,802.74 : 11,465,704.01 = 2,786,473.47 : x - Step 2: Convert to fraction form
7,643,802.74/11,465,704.01 = 2,786,473.47/x - Step 3: Cross multiply
7,643,802.74x = 11,465,704.01 × 2,786,473.47 - Step 4: Simplify right side
7,643,802.74x = 31,948,880,024,805.25 - Step 5: Solve for x
x = 31,948,880,024,805.25/7,643,802.74 - Step 6: Final answer
x = 4,179,710.17
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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.