Finding the Fourth Proportional to 5,315,317.68, 7,972,470.96 and 2,119,589.04
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Solution
The fourth proportional to 5,315,317.68, 7,972,470.96 and 2,119,589.04 is: 3,179,181.96
Step by Step Solution
- Step 1: Write the proportion equation
5,315,317.68 : 7,972,470.96 = 2,119,589.04 : x - Step 2: Convert to fraction form
5,315,317.68/7,972,470.96 = 2,119,589.04/x - Step 3: Cross multiply
5,315,317.68x = 7,972,470.96 × 2,119,589.04 - Step 4: Simplify right side
5,315,317.68x = 16,898,362,068,534.28 - Step 5: Solve for x
x = 16,898,362,068,534.28/5,315,317.68 - Step 6: Final answer
x = 3,179,181.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.