Finding the Fourth Proportional to 5,390,216.20, 8,086,490.70 and 1,604,081.80
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Solution
The fourth proportional to 5,390,216.20, 8,086,490.70 and 1,604,081.80 is: 2,406,469.81
Step by Step Solution
- Step 1: Write the proportion equation
5,390,216.20 : 8,086,490.70 = 1,604,081.80 : x - Step 2: Convert to fraction form
5,390,216.20/8,086,490.70 = 1,604,081.80/x - Step 3: Cross multiply
5,390,216.20x = 8,086,490.70 × 1,604,081.80 - Step 4: Simplify right side
5,390,216.20x = 12,971,392,557,739.26 - Step 5: Solve for x
x = 12,971,392,557,739.26/5,390,216.20 - Step 6: Final answer
x = 2,406,469.81
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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.