Finding the Fourth Proportional to 27,730,431.22, 38,269,121.84 and 15,340,311.02
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Solution
The fourth proportional to 27,730,431.22, 38,269,121.84 and 15,340,311.02 is: 21,170,252.52
Step by Step Solution
- Step 1: Write the proportion equation
27,730,431.22 : 38,269,121.84 = 15,340,311.02 : x - Step 2: Convert to fraction form
27,730,431.22/38,269,121.84 = 15,340,311.02/x - Step 3: Cross multiply
27,730,431.22x = 38,269,121.84 × 15,340,311.02 - Step 4: Simplify right side
27,730,431.22x = 587,060,231,411,173.12 - Step 5: Solve for x
x = 587,060,231,411,173.12/27,730,431.22 - Step 6: Final answer
x = 21,170,252.52
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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.