Finding the Fourth Proportional to 5,192,976.18, 7,165,931.69 and 2,869,840.90
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Solution
The fourth proportional to 5,192,976.18, 7,165,931.69 and 2,869,840.90 is: 3,960,172.96
Step by Step Solution
- Step 1: Write the proportion equation
5,192,976.18 : 7,165,931.69 = 2,869,840.90 : x - Step 2: Convert to fraction form
5,192,976.18/7,165,931.69 = 2,869,840.90/x - Step 3: Cross multiply
5,192,976.18x = 7,165,931.69 × 2,869,840.90 - Step 4: Simplify right side
5,192,976.18x = 20,565,083,866,700.14 - Step 5: Solve for x
x = 20,565,083,866,700.14/5,192,976.18 - Step 6: Final answer
x = 3,960,172.96
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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.