Finding the Fourth Proportional to 7,239,541.01, 9,992,306.46 and 4,143,859.09
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Solution
The fourth proportional to 7,239,541.01, 9,992,306.46 and 4,143,859.09 is: 5,719,521.43
Step by Step Solution
- Step 1: Write the proportion equation
7,239,541.01 : 9,992,306.46 = 4,143,859.09 : x - Step 2: Convert to fraction form
7,239,541.01/9,992,306.46 = 4,143,859.09/x - Step 3: Cross multiply
7,239,541.01x = 9,992,306.46 × 4,143,859.09 - Step 4: Simplify right side
7,239,541.01x = 41,406,709,926,734.45 - Step 5: Solve for x
x = 41,406,709,926,734.45/7,239,541.01 - Step 6: Final answer
x = 5,719,521.43
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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.