Finding the Fourth Proportional to 5,487,204.52, 8,229,062.24 and 5,128,979.18
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Solution
The fourth proportional to 5,487,204.52, 8,229,062.24 and 5,128,979.18 is: 7,691,838.12
Step by Step Solution
- Step 1: Write the proportion equation
5,487,204.52 : 8,229,062.24 = 5,128,979.18 : x - Step 2: Convert to fraction form
5,487,204.52/8,229,062.24 = 5,128,979.18/x - Step 3: Cross multiply
5,487,204.52x = 8,229,062.24 × 5,128,979.18 - Step 4: Simplify right side
5,487,204.52x = 42,206,688,884,190.85 - Step 5: Solve for x
x = 42,206,688,884,190.85/5,487,204.52 - Step 6: Final answer
x = 7,691,838.12
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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.