Finding the Fourth Proportional to 15,247,060.50, 21,040,881.84 and 8,720,680.62
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Solution
The fourth proportional to 15,247,060.50, 21,040,881.84 and 8,720,680.62 is: 12,034,503.99
Step by Step Solution
- Step 1: Write the proportion equation
15,247,060.50 : 21,040,881.84 = 8,720,680.62 : x - Step 2: Convert to fraction form
15,247,060.50/21,040,881.84 = 8,720,680.62/x - Step 3: Cross multiply
15,247,060.50x = 21,040,881.84 × 8,720,680.62 - Step 4: Simplify right side
15,247,060.50x = 183,490,810,489,797.94 - Step 5: Solve for x
x = 183,490,810,489,797.94/15,247,060.50 - Step 6: Final answer
x = 12,034,503.99
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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.