Finding the Fourth Proportional to 5,177,564.70, 7,144,731.84 and 2,971,917.96
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Solution
The fourth proportional to 5,177,564.70, 7,144,731.84 and 2,971,917.96 is: 4,101,070.31
Step by Step Solution
- Step 1: Write the proportion equation
5,177,564.70 : 7,144,731.84 = 2,971,917.96 : x - Step 2: Convert to fraction form
5,177,564.70/7,144,731.84 = 2,971,917.96/x - Step 3: Cross multiply
5,177,564.70x = 7,144,731.84 × 2,971,917.96 - Step 4: Simplify right side
5,177,564.70x = 21,233,556,874,679.84 - Step 5: Solve for x
x = 21,233,556,874,679.84/5,177,564.70 - Step 6: Final answer
x = 4,101,070.31
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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.