Finding the Fourth Proportional to 8,145,293.60, 11,239,849.64 and 4,707,757.28
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Solution
The fourth proportional to 8,145,293.60, 11,239,849.64 and 4,707,757.28 is: 6,496,326.17
Step by Step Solution
- Step 1: Write the proportion equation
8,145,293.60 : 11,239,849.64 = 4,707,757.28 : x - Step 2: Convert to fraction form
8,145,293.60/11,239,849.64 = 4,707,757.28/x - Step 3: Cross multiply
8,145,293.60x = 11,239,849.64 × 4,707,757.28 - Step 4: Simplify right side
8,145,293.60x = 52,914,483,968,815.38 - Step 5: Solve for x
x = 52,914,483,968,815.38/8,145,293.60 - Step 6: Final answer
x = 6,496,326.17
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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.