Finding the Fourth Proportional to 8,374,728.78, 11,556,207.63 and 4,702,901.58
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Solution
The fourth proportional to 8,374,728.78, 11,556,207.63 and 4,702,901.58 is: 6,489,488.62
Step by Step Solution
- Step 1: Write the proportion equation
8,374,728.78 : 11,556,207.63 = 4,702,901.58 : x - Step 2: Convert to fraction form
8,374,728.78/11,556,207.63 = 4,702,901.58/x - Step 3: Cross multiply
8,374,728.78x = 11,556,207.63 × 4,702,901.58 - Step 4: Simplify right side
8,374,728.78x = 54,347,707,121,935.06 - Step 5: Solve for x
x = 54,347,707,121,935.06/8,374,728.78 - Step 6: Final answer
x = 6,489,488.62
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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.