Finding the Fourth Proportional to 7,202,970.55, 10,804,474.28 and 2,943,138.78
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Solution
The fourth proportional to 7,202,970.55, 10,804,474.28 and 2,943,138.78 is: 4,414,715.72
Step by Step Solution
- Step 1: Write the proportion equation
7,202,970.55 : 10,804,474.28 = 2,943,138.78 : x - Step 2: Convert to fraction form
7,202,970.55/10,804,474.28 = 2,943,138.78/x - Step 3: Cross multiply
7,202,970.55x = 10,804,474.28 × 2,943,138.78 - Step 4: Simplify right side
7,202,970.55x = 31,799,067,289,433.13 - Step 5: Solve for x
x = 31,799,067,289,433.13/7,202,970.55 - Step 6: Final answer
x = 4,414,715.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.