Finding the Fourth Proportional to 206,125,260.20, 309,187,890.30 and 185,717,925.80
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Solution
The fourth proportional to 206,125,260.20, 309,187,890.30 and 185,717,925.80 is: 278,576,888.70
Step by Step Solution
- Step 1: Write the proportion equation
206,125,260.20 : 309,187,890.30 = 185,717,925.80 : x - Step 2: Convert to fraction form
206,125,260.20/309,187,890.30 = 185,717,925.80/x - Step 3: Cross multiply
206,125,260.20x = 309,187,890.30 × 185,717,925.80 - Step 4: Simplify right side
206,125,260.20x = 57,421,733,668,993,944 - Step 5: Solve for x
x = 57,421,733,668,993,944/206,125,260.20 - Step 6: Final answer
x = 278,576,888.70
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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.