Finding the Fourth Proportional to 4,378,002.70, 6,561,474.45 and 2,129,298.70
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Solution
The fourth proportional to 4,378,002.70, 6,561,474.45 and 2,129,298.70 is: 3,191,258.66
Step by Step Solution
- Step 1: Write the proportion equation
4,378,002.70 : 6,561,474.45 = 2,129,298.70 : x - Step 2: Convert to fraction form
4,378,002.70/6,561,474.45 = 2,129,298.70/x - Step 3: Cross multiply
4,378,002.70x = 6,561,474.45 × 2,129,298.70 - Step 4: Simplify right side
4,378,002.70x = 13,971,339,016,468.22 - Step 5: Solve for x
x = 13,971,339,016,468.22/4,378,002.70 - Step 6: Final answer
x = 3,191,258.66
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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.