Finding the Fourth Proportional to 5,635,470, 7,776,948.60 and 3,221,073.84
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Solution
The fourth proportional to 5,635,470, 7,776,948.60 and 3,221,073.84 is: 4,445,081.90
Step by Step Solution
- Step 1: Write the proportion equation
5,635,470 : 7,776,948.60 = 3,221,073.84 : x - Step 2: Convert to fraction form
5,635,470/7,776,948.60 = 3,221,073.84/x - Step 3: Cross multiply
5,635,470x = 7,776,948.60 × 3,221,073.84 - Step 4: Simplify right side
5,635,470x = 25,050,125,690,484.62 - Step 5: Solve for x
x = 25,050,125,690,484.62/5,635,470 - Step 6: Final answer
x = 4,445,081.90
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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.