Finding the Fourth Proportional to 16,233,921.12, 22,396,578.20 and 9,264,985.92
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Solution
The fourth proportional to 16,233,921.12, 22,396,578.20 and 9,264,985.92 is: 12,782,123.32
Step by Step Solution
- Step 1: Write the proportion equation
16,233,921.12 : 22,396,578.20 = 9,264,985.92 : x - Step 2: Convert to fraction form
16,233,921.12/22,396,578.20 = 9,264,985.92/x - Step 3: Cross multiply
16,233,921.12x = 22,396,578.20 × 9,264,985.92 - Step 4: Simplify right side
16,233,921.12x = 207,503,981,679,178.94 - Step 5: Solve for x
x = 207,503,981,679,178.94/16,233,921.12 - Step 6: Final answer
x = 12,782,123.32
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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.