Finding the Fourth Proportional to 3,873,197.86, 5,344,998.84 and 2,154,318.53
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Solution
The fourth proportional to 3,873,197.86, 5,344,998.84 and 2,154,318.53 is: 2,972,951.66
Step by Step Solution
- Step 1: Write the proportion equation
3,873,197.86 : 5,344,998.84 = 2,154,318.53 : x - Step 2: Convert to fraction form
3,873,197.86/5,344,998.84 = 2,154,318.53/x - Step 3: Cross multiply
3,873,197.86x = 5,344,998.84 × 2,154,318.53 - Step 4: Simplify right side
3,873,197.86x = 11,514,830,017,115.51 - Step 5: Solve for x
x = 11,514,830,017,115.51/3,873,197.86 - Step 6: Final answer
x = 2,972,951.66
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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.