Finding the Fourth Proportional to 7,983,749.36, 11,975,622.74 and 1,918,481.05
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Solution
The fourth proportional to 7,983,749.36, 11,975,622.74 and 1,918,481.05 is: 2,877,721.27
Step by Step Solution
- Step 1: Write the proportion equation
7,983,749.36 : 11,975,622.74 = 1,918,481.05 : x - Step 2: Convert to fraction form
7,983,749.36/11,975,622.74 = 1,918,481.05/x - Step 3: Cross multiply
7,983,749.36x = 11,975,622.74 × 1,918,481.05 - Step 4: Simplify right side
7,983,749.36x = 22,975,005,312,001.96 - Step 5: Solve for x
x = 22,975,005,312,001.96/7,983,749.36 - Step 6: Final answer
x = 2,877,721.27
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1.5x scale
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.