Finding the Fourth Proportional to 7,894,348.86, 10,894,464.99 and 4,837,972.62
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Solution
The fourth proportional to 7,894,348.86, 10,894,464.99 and 4,837,972.62 is: 6,676,563.74
Step by Step Solution
- Step 1: Write the proportion equation
7,894,348.86 : 10,894,464.99 = 4,837,972.62 : x - Step 2: Convert to fraction form
7,894,348.86/10,894,464.99 = 4,837,972.62/x - Step 3: Cross multiply
7,894,348.86x = 10,894,464.99 × 4,837,972.62 - Step 4: Simplify right side
7,894,348.86x = 52,707,123,331,168.58 - Step 5: Solve for x
x = 52,707,123,331,168.58/7,894,348.86 - Step 6: Final answer
x = 6,676,563.74
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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.