Finding the Fourth Proportional to 3,879,484.82, 5,353,854.99 and 2,160,605.06
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Solution
The fourth proportional to 3,879,484.82, 5,353,854.99 and 2,160,605.06 is: 2,981,727.40
Step by Step Solution
- Step 1: Write the proportion equation
3,879,484.82 : 5,353,854.99 = 2,160,605.06 : x - Step 2: Convert to fraction form
3,879,484.82/5,353,854.99 = 2,160,605.06/x - Step 3: Cross multiply
3,879,484.82x = 5,353,854.99 × 2,160,605.06 - Step 4: Simplify right side
3,879,484.82x = 11,567,566,187,182.62 - Step 5: Solve for x
x = 11,567,566,187,182.62/3,879,484.82 - Step 6: Final answer
x = 2,981,727.40
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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.