Finding the Fourth Proportional to 6,390,953.28, 8,819,470.68 and 3,490,344.96
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Solution
The fourth proportional to 6,390,953.28, 8,819,470.68 and 3,490,344.96 is: 4,816,651.55
Step by Step Solution
- Step 1: Write the proportion equation
6,390,953.28 : 8,819,470.68 = 3,490,344.96 : x - Step 2: Convert to fraction form
6,390,953.28/8,819,470.68 = 3,490,344.96/x - Step 3: Cross multiply
6,390,953.28x = 8,819,470.68 × 3,490,344.96 - Step 4: Simplify right side
6,390,953.28x = 30,782,995,037,805.77 - Step 5: Solve for x
x = 30,782,995,037,805.77/6,390,953.28 - Step 6: Final answer
x = 4,816,651.55
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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.