Finding the Fourth Proportional to 5,187,749.12, 7,159,207.20 and 2,864,636.48
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Solution
The fourth proportional to 5,187,749.12, 7,159,207.20 and 2,864,636.48 is: 3,953,260.97
Step by Step Solution
- Step 1: Write the proportion equation
5,187,749.12 : 7,159,207.20 = 2,864,636.48 : x - Step 2: Convert to fraction form
5,187,749.12/7,159,207.20 = 2,864,636.48/x - Step 3: Cross multiply
5,187,749.12x = 7,159,207.20 × 2,864,636.48 - Step 4: Simplify right side
5,187,749.12x = 20,508,526,112,998.66 - Step 5: Solve for x
x = 20,508,526,112,998.66/5,187,749.12 - Step 6: Final answer
x = 3,953,260.97
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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.