Finding the Fourth Proportional to 4,919,171.68, 7,329,853.80 and 4,382,569.28
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Solution
The fourth proportional to 4,919,171.68, 7,329,853.80 and 4,382,569.28 is: 6,530,284.81
Step by Step Solution
- Step 1: Write the proportion equation
4,919,171.68 : 7,329,853.80 = 4,382,569.28 : x - Step 2: Convert to fraction form
4,919,171.68/7,329,853.80 = 4,382,569.28/x - Step 3: Cross multiply
4,919,171.68x = 7,329,853.80 × 4,382,569.28 - Step 4: Simplify right side
4,919,171.68x = 32,123,592,090,771.27 - Step 5: Solve for x
x = 32,123,592,090,771.27/4,919,171.68 - Step 6: Final answer
x = 6,530,284.81
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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.