Finding the Third Proportional to 7,278,080 and 11,415,756
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Solution
The third proportional to 7,278,080 and 11,415,756 is: 17,905,750.56
Step by Step Solution
- Step 1: Write the proportion equation
7,278,080 : 11,415,756 = 11,415,756 : x - Step 2: Convert to fraction form
7,278,080/11,415,756 = 11,415,756/x - Step 3: Cross multiply
7,278,080x = 11,415,756 × 11,415,756 - Step 4: Simplify right side
7,278,080x = 130,319,485,051,536 - Step 5: Solve for x
x = 130,319,485,051,536/7,278,080 - Step 6: Final answer
x = 17,905,750.56
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.