Finding the Fourth Proportional to 6,429,802.38, 8,873,123.87 and 3,638,874.99
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Solution
The fourth proportional to 6,429,802.38, 8,873,123.87 and 3,638,874.99 is: 5,021,645.55
Step by Step Solution
- Step 1: Write the proportion equation
6,429,802.38 : 8,873,123.87 = 3,638,874.99 : x - Step 2: Convert to fraction form
6,429,802.38/8,873,123.87 = 3,638,874.99/x - Step 3: Cross multiply
6,429,802.38x = 8,873,123.87 × 3,638,874.99 - Step 4: Simplify right side
6,429,802.38x = 32,288,188,515,520.64 - Step 5: Solve for x
x = 32,288,188,515,520.64/6,429,802.38 - Step 6: Final answer
x = 5,021,645.55
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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.