Finding the Fourth Proportional to 5,328,765.60, 7,353,691.34 and 2,881,370.78
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Solution
The fourth proportional to 5,328,765.60, 7,353,691.34 and 2,881,370.78 is: 3,976,288.88
Step by Step Solution
- Step 1: Write the proportion equation
5,328,765.60 : 7,353,691.34 = 2,881,370.78 : x - Step 2: Convert to fraction form
5,328,765.60/7,353,691.34 = 2,881,370.78/x - Step 3: Cross multiply
5,328,765.60x = 7,353,691.34 × 2,881,370.78 - Step 4: Simplify right side
5,328,765.60x = 21,188,711,386,188.30 - Step 5: Solve for x
x = 21,188,711,386,188.30/5,328,765.60 - Step 6: Final answer
x = 3,976,288.88
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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.