Finding the Fourth Proportional to 3,129,068.29, 4,685,193.17 and 1,985,639.79
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Solution
The fourth proportional to 3,129,068.29, 4,685,193.17 and 1,985,639.79 is: 2,973,123.35
Step by Step Solution
- Step 1: Write the proportion equation
3,129,068.29 : 4,685,193.17 = 1,985,639.79 : x - Step 2: Convert to fraction form
3,129,068.29/4,685,193.17 = 1,985,639.79/x - Step 3: Cross multiply
3,129,068.29x = 4,685,193.17 × 1,985,639.79 - Step 4: Simplify right side
3,129,068.29x = 9,303,105,982,188.24 - Step 5: Solve for x
x = 9,303,105,982,188.24/3,129,068.29 - Step 6: Final answer
x = 2,973,123.35
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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.