Finding the Fourth Proportional to 13,319,275.32, 18,380,599.97 and 7,207,703.82
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Solution
The fourth proportional to 13,319,275.32, 18,380,599.97 and 7,207,703.82 is: 9,946,631.28
Step by Step Solution
- Step 1: Write the proportion equation
13,319,275.32 : 18,380,599.97 = 7,207,703.82 : x - Step 2: Convert to fraction form
13,319,275.32/18,380,599.97 = 7,207,703.82/x - Step 3: Cross multiply
13,319,275.32x = 18,380,599.97 × 7,207,703.82 - Step 4: Simplify right side
13,319,275.32x = 132,481,920,581,622.38 - Step 5: Solve for x
x = 132,481,920,581,622.38/13,319,275.32 - Step 6: Final answer
x = 9,946,631.28
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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.