Finding the Fourth Proportional to 5,186,229.76, 7,157,356.32 and 2,894,838.40
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Solution
The fourth proportional to 5,186,229.76, 7,157,356.32 and 2,894,838.40 is: 3,995,077.52
Step by Step Solution
- Step 1: Write the proportion equation
5,186,229.76 : 7,157,356.32 = 2,894,838.40 : x - Step 2: Convert to fraction form
5,186,229.76/7,157,356.32 = 2,894,838.40/x - Step 3: Cross multiply
5,186,229.76x = 7,157,356.32 × 2,894,838.40 - Step 4: Simplify right side
5,186,229.76x = 20,719,389,917,618.69 - Step 5: Solve for x
x = 20,719,389,917,618.69/5,186,229.76 - Step 6: Final answer
x = 3,995,077.52
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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.