Finding the Fourth Proportional to 7,239,553.12, 9,992,323.19 and 4,143,871.23
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Solution
The fourth proportional to 7,239,553.12, 9,992,323.19 and 4,143,871.23 is: 5,719,538.20
Step by Step Solution
- Step 1: Write the proportion equation
7,239,553.12 : 9,992,323.19 = 4,143,871.23 : x - Step 2: Convert to fraction form
7,239,553.12/9,992,323.19 = 4,143,871.23/x - Step 3: Cross multiply
7,239,553.12x = 9,992,323.19 × 4,143,871.23 - Step 4: Simplify right side
7,239,553.12x = 41,406,900,587,902.82 - Step 5: Solve for x
x = 41,406,900,587,902.82/7,239,553.12 - Step 6: Final answer
x = 5,719,538.20
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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.