Finding the Fourth Proportional to 3,435,349.92, 5,129,891.40 and 2,805,513.12
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Solution
The fourth proportional to 3,435,349.92, 5,129,891.40 and 2,805,513.12 is: 4,189,377.49
Step by Step Solution
- Step 1: Write the proportion equation
3,435,349.92 : 5,129,891.40 = 2,805,513.12 : x - Step 2: Convert to fraction form
3,435,349.92/5,129,891.40 = 2,805,513.12/x - Step 3: Cross multiply
3,435,349.92x = 5,129,891.40 × 2,805,513.12 - Step 4: Simplify right side
3,435,349.92x = 14,391,977,626,875.17 - Step 5: Solve for x
x = 14,391,977,626,875.17/3,435,349.92 - Step 6: Final answer
x = 4,189,377.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.