Finding the Fourth Proportional to 14,442,218.96, 19,930,221.06 and 7,915,828.23
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Solution
The fourth proportional to 14,442,218.96, 19,930,221.06 and 7,915,828.23 is: 10,923,820.43
Step by Step Solution
- Step 1: Write the proportion equation
14,442,218.96 : 19,930,221.06 = 7,915,828.23 : x - Step 2: Convert to fraction form
14,442,218.96/19,930,221.06 = 7,915,828.23/x - Step 3: Cross multiply
14,442,218.96x = 19,930,221.06 × 7,915,828.23 - Step 4: Simplify right side
14,442,218.96x = 157,764,206,496,888.53 - Step 5: Solve for x
x = 157,764,206,496,888.53/14,442,218.96 - Step 6: Final answer
x = 10,923,820.43
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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.