Finding the Fourth Proportional to 5,739,807.15, 7,920,932.58 and 3,161,487.96
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Solution
The fourth proportional to 5,739,807.15, 7,920,932.58 and 3,161,487.96 is: 4,362,852.68
Step by Step Solution
- Step 1: Write the proportion equation
5,739,807.15 : 7,920,932.58 = 3,161,487.96 : x - Step 2: Convert to fraction form
5,739,807.15/7,920,932.58 = 3,161,487.96/x - Step 3: Cross multiply
5,739,807.15x = 7,920,932.58 × 3,161,487.96 - Step 4: Simplify right side
5,739,807.15x = 25,041,932,983,641.74 - Step 5: Solve for x
x = 25,041,932,983,641.74/5,739,807.15 - Step 6: Final answer
x = 4,362,852.68
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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.