Finding the Fourth Proportional to 19,681,485.62, 29,520,235.19 and 5,306,006.57
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Solution
The fourth proportional to 19,681,485.62, 29,520,235.19 and 5,306,006.57 is: 7,958,472.48
Step by Step Solution
- Step 1: Write the proportion equation
19,681,485.62 : 29,520,235.19 = 5,306,006.57 : x - Step 2: Convert to fraction form
19,681,485.62/29,520,235.19 = 5,306,006.57/x - Step 3: Cross multiply
19,681,485.62x = 29,520,235.19 × 5,306,006.57 - Step 4: Simplify right side
19,681,485.62x = 156,634,561,691,954 - Step 5: Solve for x
x = 156,634,561,691,954/19,681,485.62 - Step 6: Final answer
x = 7,958,472.48
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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.