Finding the Fourth Proportional to 5,580,920.70, 8,371,381.05 and 5,486,442.30
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Solution
The fourth proportional to 5,580,920.70, 8,371,381.05 and 5,486,442.30 is: 8,229,663.45
Step by Step Solution
- Step 1: Write the proportion equation
5,580,920.70 : 8,371,381.05 = 5,486,442.30 : x - Step 2: Convert to fraction form
5,580,920.70/8,371,381.05 = 5,486,442.30/x - Step 3: Cross multiply
5,580,920.70x = 8,371,381.05 × 5,486,442.30 - Step 4: Simplify right side
5,580,920.70x = 45,929,099,102,138.41 - Step 5: Solve for x
x = 45,929,099,102,138.41/5,580,920.70 - Step 6: Final answer
x = 8,229,663.45
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Similar ratio
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1.5x scale
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.