Finding the Fourth Proportional to 5,387,133.48, 7,434,402.23 and 2,939,902.56
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Solution
The fourth proportional to 5,387,133.48, 7,434,402.23 and 2,939,902.56 is: 4,057,151.76
Step by Step Solution
- Step 1: Write the proportion equation
5,387,133.48 : 7,434,402.23 = 2,939,902.56 : x - Step 2: Convert to fraction form
5,387,133.48/7,434,402.23 = 2,939,902.56/x - Step 3: Cross multiply
5,387,133.48x = 7,434,402.23 × 2,939,902.56 - Step 4: Simplify right side
5,387,133.48x = 21,856,418,096,175.18 - Step 5: Solve for x
x = 21,856,418,096,175.18/5,387,133.48 - Step 6: Final answer
x = 4,057,151.76
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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.