Finding the Fourth Proportional to 5,275,639.84, 7,281,751.44 and 2,985,129.04
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Solution
The fourth proportional to 5,275,639.84, 7,281,751.44 and 2,985,129.04 is: 4,120,252.39
Step by Step Solution
- Step 1: Write the proportion equation
5,275,639.84 : 7,281,751.44 = 2,985,129.04 : x - Step 2: Convert to fraction form
5,275,639.84/7,281,751.44 = 2,985,129.04/x - Step 3: Cross multiply
5,275,639.84x = 7,281,751.44 × 2,985,129.04 - Step 4: Simplify right side
5,275,639.84x = 21,736,967,685,605.82 - Step 5: Solve for x
x = 21,736,967,685,605.82/5,275,639.84 - Step 6: Final answer
x = 4,120,252.39
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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.