Finding the Fourth Proportional to 4,977,736.64, 6,870,184.80 and 2,912,631.92
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Solution
The fourth proportional to 4,977,736.64, 6,870,184.80 and 2,912,631.92 is: 4,019,963.49
Step by Step Solution
- Step 1: Write the proportion equation
4,977,736.64 : 6,870,184.80 = 2,912,631.92 : x - Step 2: Convert to fraction form
4,977,736.64/6,870,184.80 = 2,912,631.92/x - Step 3: Cross multiply
4,977,736.64x = 6,870,184.80 × 2,912,631.92 - Step 4: Simplify right side
4,977,736.64x = 20,010,319,544,778.82 - Step 5: Solve for x
x = 20,010,319,544,778.82/4,977,736.64 - Step 6: Final answer
x = 4,019,963.49
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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.