Finding the Fourth Proportional to 4,247,143.20, 6,338,628.14 and 3,959,168.36
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Solution
The fourth proportional to 4,247,143.20, 6,338,628.14 and 3,959,168.36 is: 5,908,841.48
Step by Step Solution
- Step 1: Write the proportion equation
4,247,143.20 : 6,338,628.14 = 3,959,168.36 : x - Step 2: Convert to fraction form
4,247,143.20/6,338,628.14 = 3,959,168.36/x - Step 3: Cross multiply
4,247,143.20x = 6,338,628.14 × 3,959,168.36 - Step 4: Simplify right side
4,247,143.20x = 25,095,695,926,204.67 - Step 5: Solve for x
x = 25,095,695,926,204.67/4,247,143.20 - Step 6: Final answer
x = 5,908,841.48
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.