Finding the Fourth Proportional to 15,726,116.54, 21,702,739.12 and 8,851,043.90
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Solution
The fourth proportional to 15,726,116.54, 21,702,739.12 and 8,851,043.90 is: 12,214,833.60
Step by Step Solution
- Step 1: Write the proportion equation
15,726,116.54 : 21,702,739.12 = 8,851,043.90 : x - Step 2: Convert to fraction form
15,726,116.54/21,702,739.12 = 8,851,043.90/x - Step 3: Cross multiply
15,726,116.54x = 21,702,739.12 × 8,851,043.90 - Step 4: Simplify right side
15,726,116.54x = 192,091,896,701,367.38 - Step 5: Solve for x
x = 192,091,896,701,367.38/15,726,116.54 - Step 6: Final answer
x = 12,214,833.60
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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.