Finding the Fourth Proportional to 4,685,136.39, 6,465,442.68 and 2,620,128.47
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Solution
The fourth proportional to 4,685,136.39, 6,465,442.68 and 2,620,128.47 is: 3,615,751.81
Step by Step Solution
- Step 1: Write the proportion equation
4,685,136.39 : 6,465,442.68 = 2,620,128.47 : x - Step 2: Convert to fraction form
4,685,136.39/6,465,442.68 = 2,620,128.47/x - Step 3: Cross multiply
4,685,136.39x = 6,465,442.68 × 2,620,128.47 - Step 4: Simplify right side
4,685,136.39x = 16,940,290,404,693.88 - Step 5: Solve for x
x = 16,940,290,404,693.88/4,685,136.39 - Step 6: Final answer
x = 3,615,751.81
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1.5x scale
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.