Finding the Fourth Proportional to 19,388,805.20, 29,083,207.80 and 16,402,821.20
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Solution
The fourth proportional to 19,388,805.20, 29,083,207.80 and 16,402,821.20 is: 24,604,231.80
Step by Step Solution
- Step 1: Write the proportion equation
19,388,805.20 : 29,083,207.80 = 16,402,821.20 : x - Step 2: Convert to fraction form
19,388,805.20/29,083,207.80 = 16,402,821.20/x - Step 3: Cross multiply
19,388,805.20x = 29,083,207.80 × 16,402,821.20 - Step 4: Simplify right side
19,388,805.20x = 477,046,657,465,845.38 - Step 5: Solve for x
x = 477,046,657,465,845.38/19,388,805.20 - Step 6: Final answer
x = 24,604,231.80
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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.