Finding the Fourth Proportional to 6,887,490.68, 9,517,845.96 and 5,165,621.84
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Solution
The fourth proportional to 6,887,490.68, 9,517,845.96 and 5,165,621.84 is: 7,138,389.76
Step by Step Solution
- Step 1: Write the proportion equation
6,887,490.68 : 9,517,845.96 = 5,165,621.84 : x - Step 2: Convert to fraction form
6,887,490.68/9,517,845.96 = 5,165,621.84/x - Step 3: Cross multiply
6,887,490.68x = 9,517,845.96 × 5,165,621.84 - Step 4: Simplify right side
6,887,490.68x = 49,165,592,960,731.77 - Step 5: Solve for x
x = 49,165,592,960,731.77/6,887,490.68 - Step 6: Final answer
x = 7,138,389.76
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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.