Finding the Fourth Proportional to 5,086,868.90, 7,639,160.70 and 2,695,384.40
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Solution
The fourth proportional to 5,086,868.90, 7,639,160.70 and 2,695,384.40 is: 4,047,769.85
Step by Step Solution
- Step 1: Write the proportion equation
5,086,868.90 : 7,639,160.70 = 2,695,384.40 : x - Step 2: Convert to fraction form
5,086,868.90/7,639,160.70 = 2,695,384.40/x - Step 3: Cross multiply
5,086,868.90x = 7,639,160.70 × 2,695,384.40 - Step 4: Simplify right side
5,086,868.90x = 20,590,474,579,873.08 - Step 5: Solve for x
x = 20,590,474,579,873.08/5,086,868.90 - Step 6: Final answer
x = 4,047,769.85
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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.