Finding the Fourth Proportional to 5,151,221.49, 7,108,330.05 and 2,859,201.75
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Solution
The fourth proportional to 5,151,221.49, 7,108,330.05 and 2,859,201.75 is: 3,945,501.03
Step by Step Solution
- Step 1: Write the proportion equation
5,151,221.49 : 7,108,330.05 = 2,859,201.75 : x - Step 2: Convert to fraction form
5,151,221.49/7,108,330.05 = 2,859,201.75/x - Step 3: Cross multiply
5,151,221.49x = 7,108,330.05 × 2,859,201.75 - Step 4: Simplify right side
5,151,221.49x = 20,324,149,718,537.59 - Step 5: Solve for x
x = 20,324,149,718,537.59/5,151,221.49 - Step 6: Final answer
x = 3,945,501.03
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1.5x scale
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.