Finding the Fourth Proportional to 5,696,838.64, 7,861,636.74 and 3,118,521.16
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Solution
The fourth proportional to 5,696,838.64, 7,861,636.74 and 3,118,521.16 is: 4,303,558.88
Step by Step Solution
- Step 1: Write the proportion equation
5,696,838.64 : 7,861,636.74 = 3,118,521.16 : x - Step 2: Convert to fraction form
5,696,838.64/7,861,636.74 = 3,118,521.16/x - Step 3: Cross multiply
5,696,838.64x = 7,861,636.74 × 3,118,521.16 - Step 4: Simplify right side
5,696,838.64x = 24,516,680,525,923.42 - Step 5: Solve for x
x = 24,516,680,525,923.42/5,696,838.64 - Step 6: Final answer
x = 4,303,558.88
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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.