Finding the Fourth Proportional to 20,297,478.42, 27,983,422.08 and 16,125,007.68
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Solution
The fourth proportional to 20,297,478.42, 27,983,422.08 and 16,125,007.68 is: 22,230,982.91
Step by Step Solution
- Step 1: Write the proportion equation
20,297,478.42 : 27,983,422.08 = 16,125,007.68 : x - Step 2: Convert to fraction form
20,297,478.42/27,983,422.08 = 16,125,007.68/x - Step 3: Cross multiply
20,297,478.42x = 27,983,422.08 × 16,125,007.68 - Step 4: Simplify right side
20,297,478.42x = 451,232,895,952,681.56 - Step 5: Solve for x
x = 451,232,895,952,681.56/20,297,478.42 - Step 6: Final answer
x = 22,230,982.91
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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.