Finding the Fourth Proportional to 5,353,082.28, 7,387,260.66 and 2,905,691.76
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Solution
The fourth proportional to 5,353,082.28, 7,387,260.66 and 2,905,691.76 is: 4,009,858.49
Step by Step Solution
- Step 1: Write the proportion equation
5,353,082.28 : 7,387,260.66 = 2,905,691.76 : x - Step 2: Convert to fraction form
5,353,082.28/7,387,260.66 = 2,905,691.76/x - Step 3: Cross multiply
5,353,082.28x = 7,387,260.66 × 2,905,691.76 - Step 4: Simplify right side
5,353,082.28x = 21,465,102,428,734.16 - Step 5: Solve for x
x = 21,465,102,428,734.16/5,353,082.28 - Step 6: Final answer
x = 4,009,858.49
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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.