Finding the Fourth Proportional to 27,747,817.64, 38,288,794.02 and 15,988,800.68
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Solution
The fourth proportional to 27,747,817.64, 38,288,794.02 and 15,988,800.68 is: 22,062,704.31
Step by Step Solution
- Step 1: Write the proportion equation
27,747,817.64 : 38,288,794.02 = 15,988,800.68 : x - Step 2: Convert to fraction form
27,747,817.64/38,288,794.02 = 15,988,800.68/x - Step 3: Cross multiply
27,747,817.64x = 38,288,794.02 × 15,988,800.68 - Step 4: Simplify right side
27,747,817.64x = 612,191,895,863,356 - Step 5: Solve for x
x = 612,191,895,863,356/27,747,817.64 - Step 6: Final answer
x = 22,062,704.31
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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.