Finding the Fourth Proportional to 18,940,295.07, 28,410,502.05 and 5,293,351.49
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Solution
The fourth proportional to 18,940,295.07, 28,410,502.05 and 5,293,351.49 is: 7,940,043.84
Step by Step Solution
- Step 1: Write the proportion equation
18,940,295.07 : 28,410,502.05 = 5,293,351.49 : x - Step 2: Convert to fraction form
18,940,295.07/28,410,502.05 = 5,293,351.49/x - Step 3: Cross multiply
18,940,295.07x = 28,410,502.05 × 5,293,351.49 - Step 4: Simplify right side
18,940,295.07x = 150,386,773,215,963.06 - Step 5: Solve for x
x = 150,386,773,215,963.06/18,940,295.07 - Step 6: Final answer
x = 7,940,043.84
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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.