Finding the Fourth Proportional to 10,678,909.53, 14,732,827.65 and 7,894,718.13
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Solution
The fourth proportional to 10,678,909.53, 14,732,827.65 and 7,894,718.13 is: 10,891,703.99
Step by Step Solution
- Step 1: Write the proportion equation
10,678,909.53 : 14,732,827.65 = 7,894,718.13 : x - Step 2: Convert to fraction form
10,678,909.53/14,732,827.65 = 7,894,718.13/x - Step 3: Cross multiply
10,678,909.53x = 14,732,827.65 × 7,894,718.13 - Step 4: Simplify right side
10,678,909.53x = 116,311,521,554,620.30 - Step 5: Solve for x
x = 116,311,521,554,620.30/10,678,909.53 - Step 6: Final answer
x = 10,891,703.99
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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.