Finding the Fourth Proportional to 7,105,125.80, 10,668,747.90 and 4,119,141.80
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Solution
The fourth proportional to 7,105,125.80, 10,668,747.90 and 4,119,141.80 is: 6,185,124.19
Step by Step Solution
- Step 1: Write the proportion equation
7,105,125.80 : 10,668,747.90 = 4,119,141.80 : x - Step 2: Convert to fraction form
7,105,125.80/10,668,747.90 = 4,119,141.80/x - Step 3: Cross multiply
7,105,125.80x = 10,668,747.90 × 4,119,141.80 - Step 4: Simplify right side
7,105,125.80x = 43,946,085,428,552.22 - Step 5: Solve for x
x = 43,946,085,428,552.22/7,105,125.80 - Step 6: Final answer
x = 6,185,124.19
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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.