Finding the Fourth Proportional to 7,678,841.35, 10,596,731.28 and 4,194,179.40
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Solution
The fourth proportional to 7,678,841.35, 10,596,731.28 and 4,194,179.40 is: 5,787,929.46
Step by Step Solution
- Step 1: Write the proportion equation
7,678,841.35 : 10,596,731.28 = 4,194,179.40 : x - Step 2: Convert to fraction form
7,678,841.35/10,596,731.28 = 4,194,179.40/x - Step 3: Cross multiply
7,678,841.35x = 10,596,731.28 × 4,194,179.40 - Step 4: Simplify right side
7,678,841.35x = 44,444,592,041,911.62 - Step 5: Solve for x
x = 44,444,592,041,911.62/7,678,841.35 - Step 6: Final answer
x = 5,787,929.46
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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.