Finding the Fourth Proportional to 5,121,764.34, 7,068,020.28 and 2,829,908.70
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Solution
The fourth proportional to 5,121,764.34, 7,068,020.28 and 2,829,908.70 is: 3,905,265.99
Step by Step Solution
- Step 1: Write the proportion equation
5,121,764.34 : 7,068,020.28 = 2,829,908.70 : x - Step 2: Convert to fraction form
5,121,764.34/7,068,020.28 = 2,829,908.70/x - Step 3: Cross multiply
5,121,764.34x = 7,068,020.28 × 2,829,908.70 - Step 4: Simplify right side
5,121,764.34x = 20,001,852,082,148.44 - Step 5: Solve for x
x = 20,001,852,082,148.44/5,121,764.34 - Step 6: Final answer
x = 3,905,265.99
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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.