Finding the Fourth Proportional to 19,917,794.70, 29,876,692.05 and 19,728,837.90
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Solution
The fourth proportional to 19,917,794.70, 29,876,692.05 and 19,728,837.90 is: 29,593,256.85
Step by Step Solution
- Step 1: Write the proportion equation
19,917,794.70 : 29,876,692.05 = 19,728,837.90 : x - Step 2: Convert to fraction form
19,917,794.70/29,876,692.05 = 19,728,837.90/x - Step 3: Cross multiply
19,917,794.70x = 29,876,692.05 × 19,728,837.90 - Step 4: Simplify right side
19,917,794.70x = 589,432,414,442,668.62 - Step 5: Solve for x
x = 589,432,414,442,668.62/19,917,794.70 - Step 6: Final answer
x = 29,593,256.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.