Finding the Fourth Proportional to 3,888,575.87, 5,365,827.74 and 2,146,213.13
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Solution
The fourth proportional to 3,888,575.87, 5,365,827.74 and 2,146,213.13 is: 2,961,549.51
Step by Step Solution
- Step 1: Write the proportion equation
3,888,575.87 : 5,365,827.74 = 2,146,213.13 : x - Step 2: Convert to fraction form
3,888,575.87/5,365,827.74 = 2,146,213.13/x - Step 3: Cross multiply
3,888,575.87x = 5,365,827.74 × 2,146,213.13 - Step 4: Simplify right side
3,888,575.87x = 11,516,209,960,644.34 - Step 5: Solve for x
x = 11,516,209,960,644.34/3,888,575.87 - Step 6: Final answer
x = 2,961,549.51
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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.