Finding the Fourth Proportional to 16,290,557.72, 22,479,658.62 and 9,415,485.08
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Solution
The fourth proportional to 16,290,557.72, 22,479,658.62 and 9,415,485.08 is: 12,992,611.67
Step by Step Solution
- Step 1: Write the proportion equation
16,290,557.72 : 22,479,658.62 = 9,415,485.08 : x - Step 2: Convert to fraction form
16,290,557.72/22,479,658.62 = 9,415,485.08/x - Step 3: Cross multiply
16,290,557.72x = 22,479,658.62 × 9,415,485.08 - Step 4: Simplify right side
16,290,557.72x = 211,656,890,340,103.41 - Step 5: Solve for x
x = 211,656,890,340,103.41/16,290,557.72 - Step 6: Final answer
x = 12,992,611.67
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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.