Finding the Fourth Proportional to 39,279,339.05, 54,207,169.65 and 21,875,684.18
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Solution
The fourth proportional to 39,279,339.05, 54,207,169.65 and 21,875,684.18 is: 30,189,380.78
Step by Step Solution
- Step 1: Write the proportion equation
39,279,339.05 : 54,207,169.65 = 21,875,684.18 : x - Step 2: Convert to fraction form
39,279,339.05/54,207,169.65 = 21,875,684.18/x - Step 3: Cross multiply
39,279,339.05x = 54,207,169.65 × 21,875,684.18 - Step 4: Simplify right side
39,279,339.05x = 1,185,818,923,284,045.25 - Step 5: Solve for x
x = 1,185,818,923,284,045.25/39,279,339.05 - Step 6: Final answer
x = 30,189,380.78
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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.