Finding the Fourth Proportional to 5,419,742.16, 8,122,526.24 and 2,221,123.44
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Solution
The fourth proportional to 5,419,742.16, 8,122,526.24 and 2,221,123.44 is: 3,328,780.76
Step by Step Solution
- Step 1: Write the proportion equation
5,419,742.16 : 8,122,526.24 = 2,221,123.44 : x - Step 2: Convert to fraction form
5,419,742.16/8,122,526.24 = 2,221,123.44/x - Step 3: Cross multiply
5,419,742.16x = 8,122,526.24 × 2,221,123.44 - Step 4: Simplify right side
5,419,742.16x = 18,041,133,423,679.07 - Step 5: Solve for x
x = 18,041,133,423,679.07/5,419,742.16 - Step 6: Final answer
x = 3,328,780.76
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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.