Finding the Fourth Proportional to 215,540,623.20, 323,310,934.80 and 106,418,071.20
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Solution
The fourth proportional to 215,540,623.20, 323,310,934.80 and 106,418,071.20 is: 159,627,106.80
Step by Step Solution
- Step 1: Write the proportion equation
215,540,623.20 : 323,310,934.80 = 106,418,071.20 : x - Step 2: Convert to fraction form
215,540,623.20/323,310,934.80 = 106,418,071.20/x - Step 3: Cross multiply
215,540,623.20x = 323,310,934.80 × 106,418,071.20 - Step 4: Simplify right side
215,540,623.20x = 34,406,126,079,284,960 - Step 5: Solve for x
x = 34,406,126,079,284,960/215,540,623.20 - Step 6: Final answer
x = 159,627,106.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.