Finding the Fourth Proportional to 21,261,437.08, 31,866,246.05 and 11,020,651.02
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Solution
The fourth proportional to 21,261,437.08, 31,866,246.05 and 11,020,651.02 is: 16,517,546.57
Step by Step Solution
- Step 1: Write the proportion equation
21,261,437.08 : 31,866,246.05 = 11,020,651.02 : x - Step 2: Convert to fraction form
21,261,437.08/31,866,246.05 = 11,020,651.02/x - Step 3: Cross multiply
21,261,437.08x = 31,866,246.05 × 11,020,651.02 - Step 4: Simplify right side
21,261,437.08x = 351,186,776,979,400.25 - Step 5: Solve for x
x = 351,186,776,979,400.25/21,261,437.08 - Step 6: Final answer
x = 16,517,546.57
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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.