Finding the Fourth Proportional to 10,811,963.70, 14,920,515.70 and 5,917,182.91
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Solution
The fourth proportional to 10,811,963.70, 14,920,515.70 and 5,917,182.91 is: 8,165,715.58
Step by Step Solution
- Step 1: Write the proportion equation
10,811,963.70 : 14,920,515.70 = 5,917,182.91 : x - Step 2: Convert to fraction form
10,811,963.70/14,920,515.70 = 5,917,182.91/x - Step 3: Cross multiply
10,811,963.70x = 14,920,515.70 × 5,917,182.91 - Step 4: Simplify right side
10,811,963.70x = 88,287,420,456,332.44 - Step 5: Solve for x
x = 88,287,420,456,332.44/10,811,963.70 - Step 6: Final answer
x = 8,165,715.58
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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.