Finding the Fourth Proportional to 4,647,630.72, 6,411,857.60 and 2,808,896.76
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Solution
The fourth proportional to 4,647,630.72, 6,411,857.60 and 2,808,896.76 is: 3,875,145.67
Step by Step Solution
- Step 1: Write the proportion equation
4,647,630.72 : 6,411,857.60 = 2,808,896.76 : x - Step 2: Convert to fraction form
4,647,630.72/6,411,857.60 = 2,808,896.76/x - Step 3: Cross multiply
4,647,630.72x = 6,411,857.60 × 2,808,896.76 - Step 4: Simplify right side
4,647,630.72x = 18,010,246,038,221.38 - Step 5: Solve for x
x = 18,010,246,038,221.38/4,647,630.72 - Step 6: Final answer
x = 3,875,145.67
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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.