Finding the Fourth Proportional to 5,979,139.20, 8,966,959.20 and 2,140,516.80
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Solution
The fourth proportional to 5,979,139.20, 8,966,959.20 and 2,140,516.80 is: 3,210,148.85
Step by Step Solution
- Step 1: Write the proportion equation
5,979,139.20 : 8,966,959.20 = 2,140,516.80 : x - Step 2: Convert to fraction form
5,979,139.20/8,966,959.20 = 2,140,516.80/x - Step 3: Cross multiply
5,979,139.20x = 8,966,959.20 × 2,140,516.80 - Step 4: Simplify right side
5,979,139.20x = 19,193,926,812,514.56 - Step 5: Solve for x
x = 19,193,926,812,514.56/5,979,139.20 - Step 6: Final answer
x = 3,210,148.85
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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.