Finding the Fourth Proportional to 5,171,476.96, 7,746,640.08 and 4,215,340
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Solution
The fourth proportional to 5,171,476.96, 7,746,640.08 and 4,215,340 is: 6,314,389.88
Step by Step Solution
- Step 1: Write the proportion equation
5,171,476.96 : 7,746,640.08 = 4,215,340 : x - Step 2: Convert to fraction form
5,171,476.96/7,746,640.08 = 4,215,340/x - Step 3: Cross multiply
5,171,476.96x = 7,746,640.08 × 4,215,340 - Step 4: Simplify right side
5,171,476.96x = 32,654,721,794,827.20 - Step 5: Solve for x
x = 32,654,721,794,827.20/5,171,476.96 - Step 6: Final answer
x = 6,314,389.88
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1.5x scale
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.