Finding the Fourth Proportional to 5,151,154.95, 7,108,621.29 and 3,218,536.26
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Solution
The fourth proportional to 5,151,154.95, 7,108,621.29 and 3,218,536.26 is: 4,441,597.20
Step by Step Solution
- Step 1: Write the proportion equation
5,151,154.95 : 7,108,621.29 = 3,218,536.26 : x - Step 2: Convert to fraction form
5,151,154.95/7,108,621.29 = 3,218,536.26/x - Step 3: Cross multiply
5,151,154.95x = 7,108,621.29 × 3,218,536.26 - Step 4: Simplify right side
5,151,154.95x = 22,879,355,380,472.97 - Step 5: Solve for x
x = 22,879,355,380,472.97/5,151,154.95 - Step 6: Final answer
x = 4,441,597.20
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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.