Finding the Fourth Proportional to 7,151,901.49, 9,869,747.42 and 3,888,738.26
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Solution
The fourth proportional to 7,151,901.49, 9,869,747.42 and 3,888,738.26 is: 5,366,525.87
Step by Step Solution
- Step 1: Write the proportion equation
7,151,901.49 : 9,869,747.42 = 3,888,738.26 : x - Step 2: Convert to fraction form
7,151,901.49/9,869,747.42 = 3,888,738.26/x - Step 3: Cross multiply
7,151,901.49x = 9,869,747.42 × 3,888,738.26 - Step 4: Simplify right side
7,151,901.49x = 38,380,864,339,897.86 - Step 5: Solve for x
x = 38,380,864,339,897.86/7,151,901.49 - Step 6: Final answer
x = 5,366,525.87
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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.