Finding the Fourth Proportional to 20,711,582.76, 31,067,347.26 and 5,565,514.60
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Solution
The fourth proportional to 20,711,582.76, 31,067,347.26 and 5,565,514.60 is: 8,348,264.68
Step by Step Solution
- Step 1: Write the proportion equation
20,711,582.76 : 31,067,347.26 = 5,565,514.60 : x - Step 2: Convert to fraction form
20,711,582.76/31,067,347.26 = 5,565,514.60/x - Step 3: Cross multiply
20,711,582.76x = 31,067,347.26 × 5,565,514.60 - Step 4: Simplify right side
20,711,582.76x = 172,905,774,758,800 - Step 5: Solve for x
x = 172,905,774,758,800/20,711,582.76 - Step 6: Final answer
x = 8,348,264.68
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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.