Finding the Fourth Proportional to 18,515,862.18, 27,775,123.70 and 6,385,151.12
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Solution
The fourth proportional to 18,515,862.18, 27,775,123.70 and 6,385,151.12 is: 9,578,185.47
Step by Step Solution
- Step 1: Write the proportion equation
18,515,862.18 : 27,775,123.70 = 6,385,151.12 : x - Step 2: Convert to fraction form
18,515,862.18/27,775,123.70 = 6,385,151.12/x - Step 3: Cross multiply
18,515,862.18x = 27,775,123.70 × 6,385,151.12 - Step 4: Simplify right side
18,515,862.18x = 177,348,362,030,392.19 - Step 5: Solve for x
x = 177,348,362,030,392.19/18,515,862.18 - Step 6: Final answer
x = 9,578,185.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.