Finding the Fourth Proportional to 5,372,483.29, 7,418,635.09 and 5,198,755.20
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Solution
The fourth proportional to 5,372,483.29, 7,418,635.09 and 5,198,755.20 is: 7,178,741.31
Step by Step Solution
- Step 1: Write the proportion equation
5,372,483.29 : 7,418,635.09 = 5,198,755.20 : x - Step 2: Convert to fraction form
5,372,483.29/7,418,635.09 = 5,198,755.20/x - Step 3: Cross multiply
5,372,483.29x = 7,418,635.09 × 5,198,755.20 - Step 4: Simplify right side
5,372,483.29x = 38,567,667,710,223.20 - Step 5: Solve for x
x = 38,567,667,710,223.20/5,372,483.29 - Step 6: Final answer
x = 7,178,741.31
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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.