Finding the Fourth Proportional to 18,185,644.80, 27,282,403.80 and 5,407,441.20
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Solution
The fourth proportional to 18,185,644.80, 27,282,403.80 and 5,407,441.20 is: 8,112,332.33
Step by Step Solution
- Step 1: Write the proportion equation
18,185,644.80 : 27,282,403.80 = 5,407,441.20 : x - Step 2: Convert to fraction form
18,185,644.80/27,282,403.80 = 5,407,441.20/x - Step 3: Cross multiply
18,185,644.80x = 27,282,403.80 × 5,407,441.20 - Step 4: Simplify right side
18,185,644.80x = 147,527,994,343,156.56 - Step 5: Solve for x
x = 147,527,994,343,156.56/18,185,644.80 - Step 6: Final answer
x = 8,112,332.33
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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.