Finding the Fourth Proportional to 7,182,691.05, 9,912,323.97 and 3,919,716.03
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Solution
The fourth proportional to 7,182,691.05, 9,912,323.97 and 3,919,716.03 is: 5,409,322.90
Step by Step Solution
- Step 1: Write the proportion equation
7,182,691.05 : 9,912,323.97 = 3,919,716.03 : x - Step 2: Convert to fraction form
7,182,691.05/9,912,323.97 = 3,919,716.03/x - Step 3: Cross multiply
7,182,691.05x = 9,912,323.97 × 3,919,716.03 - Step 4: Simplify right side
7,182,691.05x = 38,853,495,159,762.24 - Step 5: Solve for x
x = 38,853,495,159,762.24/7,182,691.05 - Step 6: Final answer
x = 5,409,322.90
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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.