Finding the Fourth Proportional to 4,752,451.90, 7,128,688.79 and 3,338,818.84
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Solution
The fourth proportional to 4,752,451.90, 7,128,688.79 and 3,338,818.84 is: 5,008,235.95
Step by Step Solution
- Step 1: Write the proportion equation
4,752,451.90 : 7,128,688.79 = 3,338,818.84 : x - Step 2: Convert to fraction form
4,752,451.90/7,128,688.79 = 3,338,818.84/x - Step 3: Cross multiply
4,752,451.90x = 7,128,688.79 × 3,338,818.84 - Step 4: Simplify right side
4,752,451.90x = 23,801,400,436,548.80 - Step 5: Solve for x
x = 23,801,400,436,548.80/4,752,451.90 - Step 6: Final answer
x = 5,008,235.95
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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.