Finding the Fourth Proportional to 15,517,271.82, 21,415,517.46 and 8,548,663.62
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Solution
The fourth proportional to 15,517,271.82, 21,415,517.46 and 8,548,663.62 is: 11,798,082.62
Step by Step Solution
- Step 1: Write the proportion equation
15,517,271.82 : 21,415,517.46 = 8,548,663.62 : x - Step 2: Convert to fraction form
15,517,271.82/21,415,517.46 = 8,548,663.62/x - Step 3: Cross multiply
15,517,271.82x = 21,415,517.46 × 8,548,663.62 - Step 4: Simplify right side
15,517,271.82x = 183,074,055,013,776.78 - Step 5: Solve for x
x = 183,074,055,013,776.78/15,517,271.82 - Step 6: Final answer
x = 11,798,082.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.