Finding the Fourth Proportional to 7,428,121.65, 11,132,592.60 and 3,326,439.65
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Solution
The fourth proportional to 7,428,121.65, 11,132,592.60 and 3,326,439.65 is: 4,985,364.96
Step by Step Solution
- Step 1: Write the proportion equation
7,428,121.65 : 11,132,592.60 = 3,326,439.65 : x - Step 2: Convert to fraction form
7,428,121.65/11,132,592.60 = 3,326,439.65/x - Step 3: Cross multiply
7,428,121.65x = 11,132,592.60 × 3,326,439.65 - Step 4: Simplify right side
7,428,121.65x = 37,031,897,376,273.62 - Step 5: Solve for x
x = 37,031,897,376,273.62/7,428,121.65 - Step 6: Final answer
x = 4,985,364.96
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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.