Finding the Fourth Proportional to 279,478,885.62, 385,682,443.26 and 162,073,924.05
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Solution
The fourth proportional to 279,478,885.62, 385,682,443.26 and 162,073,924.05 is: 223,662,932.09
Step by Step Solution
- Step 1: Write the proportion equation
279,478,885.62 : 385,682,443.26 = 162,073,924.05 : x - Step 2: Convert to fraction form
279,478,885.62/385,682,443.26 = 162,073,924.05/x - Step 3: Cross multiply
279,478,885.62x = 385,682,443.26 × 162,073,924.05 - Step 4: Simplify right side
279,478,885.62x = 62,509,067,016,339,680 - Step 5: Solve for x
x = 62,509,067,016,339,680/279,478,885.62 - Step 6: Final answer
x = 223,662,932.09
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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.