Finding the Fourth Proportional to 10,290,691.40, 14,204,334.15 and 6,619,608.05
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Solution
The fourth proportional to 10,290,691.40, 14,204,334.15 and 6,619,608.05 is: 9,137,104.69
Step by Step Solution
- Step 1: Write the proportion equation
10,290,691.40 : 14,204,334.15 = 6,619,608.05 : x - Step 2: Convert to fraction form
10,290,691.40/14,204,334.15 = 6,619,608.05/x - Step 3: Cross multiply
10,290,691.40x = 14,204,334.15 × 6,619,608.05 - Step 4: Simplify right side
10,290,691.40x = 94,027,124,613,208.23 - Step 5: Solve for x
x = 94,027,124,613,208.23/10,290,691.40 - Step 6: Final answer
x = 9,137,104.69
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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.