Finding the Fourth Proportional to 5,193,302.32, 7,167,029.62 and 3,128,965.66
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Solution
The fourth proportional to 5,193,302.32, 7,167,029.62 and 3,128,965.66 is: 4,318,136.74
Step by Step Solution
- Step 1: Write the proportion equation
5,193,302.32 : 7,167,029.62 = 3,128,965.66 : x - Step 2: Convert to fraction form
5,193,302.32/7,167,029.62 = 3,128,965.66/x - Step 3: Cross multiply
5,193,302.32x = 7,167,029.62 × 3,128,965.66 - Step 4: Simplify right side
5,193,302.32x = 22,425,389,565,182.85 - Step 5: Solve for x
x = 22,425,389,565,182.85/5,193,302.32 - Step 6: Final answer
x = 4,318,136.74
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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.