Finding the Fourth Proportional to 4,747,721.86, 7,110,203.56 and 2,436,131.90
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Solution
The fourth proportional to 4,747,721.86, 7,110,203.56 and 2,436,131.90 is: 3,648,358.99
Step by Step Solution
- Step 1: Write the proportion equation
4,747,721.86 : 7,110,203.56 = 2,436,131.90 : x - Step 2: Convert to fraction form
4,747,721.86/7,110,203.56 = 2,436,131.90/x - Step 3: Cross multiply
4,747,721.86x = 7,110,203.56 × 2,436,131.90 - Step 4: Simplify right side
4,747,721.86x = 17,321,393,708,009.56 - Step 5: Solve for x
x = 17,321,393,708,009.56/4,747,721.86 - Step 6: Final answer
x = 3,648,358.99
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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.