Finding the Fourth Proportional to 15,295,268.88, 21,107,912.21 and 8,326,397.94
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Solution
The fourth proportional to 15,295,268.88, 21,107,912.21 and 8,326,397.94 is: 11,490,669.31
Step by Step Solution
- Step 1: Write the proportion equation
15,295,268.88 : 21,107,912.21 = 8,326,397.94 : x - Step 2: Convert to fraction form
15,295,268.88/21,107,912.21 = 8,326,397.94/x - Step 3: Cross multiply
15,295,268.88x = 21,107,912.21 × 8,326,397.94 - Step 4: Simplify right side
15,295,268.88x = 175,752,876,653,482.16 - Step 5: Solve for x
x = 175,752,876,653,482.16/15,295,268.88 - Step 6: Final answer
x = 11,490,669.31
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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.