Finding the Fourth Proportional to 4,138,349.74, 5,707,687.36 and 2,688,512.32
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Solution
The fourth proportional to 4,138,349.74, 5,707,687.36 and 2,688,512.32 is: 3,708,045.18
Step by Step Solution
- Step 1: Write the proportion equation
4,138,349.74 : 5,707,687.36 = 2,688,512.32 : x - Step 2: Convert to fraction form
4,138,349.74/5,707,687.36 = 2,688,512.32/x - Step 3: Cross multiply
4,138,349.74x = 5,707,687.36 × 2,688,512.32 - Step 4: Simplify right side
4,138,349.74x = 15,345,187,786,068.28 - Step 5: Solve for x
x = 15,345,187,786,068.28/4,138,349.74 - Step 6: Final answer
x = 3,708,045.18
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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.