Finding the Fourth Proportional to 7,117,134.97, 9,821,628.56 and 3,853,949.52
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Solution
The fourth proportional to 7,117,134.97, 9,821,628.56 and 3,853,949.52 is: 5,318,440.75
Step by Step Solution
- Step 1: Write the proportion equation
7,117,134.97 : 9,821,628.56 = 3,853,949.52 : x - Step 2: Convert to fraction form
7,117,134.97/9,821,628.56 = 3,853,949.52/x - Step 3: Cross multiply
7,117,134.97x = 9,821,628.56 × 3,853,949.52 - Step 4: Simplify right side
7,117,134.97x = 37,852,060,674,430.30 - Step 5: Solve for x
x = 37,852,060,674,430.30/7,117,134.97 - Step 6: Final answer
x = 5,318,440.75
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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.