Finding the Fourth Proportional to 2,106,109.48, 3,159,160.38 and 686,163.88
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Solution
The fourth proportional to 2,106,109.48, 3,159,160.38 and 686,163.88 is: 1,029,244.57
Step by Step Solution
- Step 1: Write the proportion equation
2,106,109.48 : 3,159,160.38 = 686,163.88 : x - Step 2: Convert to fraction form
2,106,109.48/3,159,160.38 = 686,163.88/x - Step 3: Cross multiply
2,106,109.48x = 3,159,160.38 × 686,163.88 - Step 4: Simplify right side
2,106,109.48x = 2,167,701,743,883.07 - Step 5: Solve for x
x = 2,167,701,743,883.07/2,106,109.48 - Step 6: Final answer
x = 1,029,244.57
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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.