Finding the Fourth Proportional to 10,251,946.39, 15,377,934.54 and 4,186,678.19
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Solution
The fourth proportional to 10,251,946.39, 15,377,934.54 and 4,186,678.19 is: 6,280,023.39
Step by Step Solution
- Step 1: Write the proportion equation
10,251,946.39 : 15,377,934.54 = 4,186,678.19 : x - Step 2: Convert to fraction form
10,251,946.39/15,377,934.54 = 4,186,678.19/x - Step 3: Cross multiply
10,251,946.39x = 15,377,934.54 × 4,186,678.19 - Step 4: Simplify right side
10,251,946.39x = 64,382,463,084,676.05 - Step 5: Solve for x
x = 64,382,463,084,676.05/10,251,946.39 - Step 6: Final answer
x = 6,280,023.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.