Finding the Fourth Proportional to 16,420,822.62, 22,660,678.44 and 9,177,478.62
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Solution
The fourth proportional to 16,420,822.62, 22,660,678.44 and 9,177,478.62 is: 12,664,888.76
Step by Step Solution
- Step 1: Write the proportion equation
16,420,822.62 : 22,660,678.44 = 9,177,478.62 : x - Step 2: Convert to fraction form
16,420,822.62/22,660,678.44 = 9,177,478.62/x - Step 3: Cross multiply
16,420,822.62x = 22,660,678.44 × 9,177,478.62 - Step 4: Simplify right side
16,420,822.62x = 207,967,891,897,794.94 - Step 5: Solve for x
x = 207,967,891,897,794.94/16,420,822.62 - Step 6: Final answer
x = 12,664,888.76
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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.