Finding the Fourth Proportional to 20,393,366.22, 28,143,479.36 and 11,101,554.90
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Solution
The fourth proportional to 20,393,366.22, 28,143,479.36 and 11,101,554.90 is: 15,320,490.88
Step by Step Solution
- Step 1: Write the proportion equation
20,393,366.22 : 28,143,479.36 = 11,101,554.90 : x - Step 2: Convert to fraction form
20,393,366.22/28,143,479.36 = 11,101,554.90/x - Step 3: Cross multiply
20,393,366.22x = 28,143,479.36 × 11,101,554.90 - Step 4: Simplify right side
20,393,366.22x = 312,436,381,219,810.75 - Step 5: Solve for x
x = 312,436,381,219,810.75/20,393,366.22 - Step 6: Final answer
x = 15,320,490.88
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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.