Finding the Fourth Proportional to 18,461,654.96, 27,577,356.28 and 13,678,685.96
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Solution
The fourth proportional to 18,461,654.96, 27,577,356.28 and 13,678,685.96 is: 20,432,729.19
Step by Step Solution
- Step 1: Write the proportion equation
18,461,654.96 : 27,577,356.28 = 13,678,685.96 : x - Step 2: Convert to fraction form
18,461,654.96/27,577,356.28 = 13,678,685.96/x - Step 3: Cross multiply
18,461,654.96x = 27,577,356.28 × 13,678,685.96 - Step 4: Simplify right side
18,461,654.96x = 377,221,996,161,153.88 - Step 5: Solve for x
x = 377,221,996,161,153.88/18,461,654.96 - Step 6: Final answer
x = 20,432,729.19
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.