Finding the Fourth Proportional to 21,306,766.24, 29,403,324.74 and 11,517,210.58
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Solution
The fourth proportional to 21,306,766.24, 29,403,324.74 and 11,517,210.58 is: 15,893,743.75
Step by Step Solution
- Step 1: Write the proportion equation
21,306,766.24 : 29,403,324.74 = 11,517,210.58 : x - Step 2: Convert to fraction form
21,306,766.24/29,403,324.74 = 11,517,210.58/x - Step 3: Cross multiply
21,306,766.24x = 29,403,324.74 × 11,517,210.58 - Step 4: Simplify right side
21,306,766.24x = 338,644,282,793,119.69 - Step 5: Solve for x
x = 338,644,282,793,119.69/21,306,766.24 - Step 6: Final answer
x = 15,893,743.75
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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.