Finding the Fourth Proportional to 4,982,521.60, 6,875,879.66 and 2,690,682.20
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Solution
The fourth proportional to 4,982,521.60, 6,875,879.66 and 2,690,682.20 is: 3,713,141.36
Step by Step Solution
- Step 1: Write the proportion equation
4,982,521.60 : 6,875,879.66 = 2,690,682.20 : x - Step 2: Convert to fraction form
4,982,521.60/6,875,879.66 = 2,690,682.20/x - Step 3: Cross multiply
4,982,521.60x = 6,875,879.66 × 2,690,682.20 - Step 4: Simplify right side
4,982,521.60x = 18,500,807,010,504.05 - Step 5: Solve for x
x = 18,500,807,010,504.05/4,982,521.60 - Step 6: Final answer
x = 3,713,141.36
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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.