Finding the Fourth Proportional to 20,773,202.26, 28,668,108.81 and 12,515,855.62
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Solution
The fourth proportional to 20,773,202.26, 28,668,108.81 and 12,515,855.62 is: 17,272,537.29
Step by Step Solution
- Step 1: Write the proportion equation
20,773,202.26 : 28,668,108.81 = 12,515,855.62 : x - Step 2: Convert to fraction form
20,773,202.26/28,668,108.81 = 12,515,855.62/x - Step 3: Cross multiply
20,773,202.26x = 28,668,108.81 × 12,515,855.62 - Step 4: Simplify right side
20,773,202.26x = 358,805,910,764,410 - Step 5: Solve for x
x = 358,805,910,764,410/20,773,202.26 - Step 6: Final answer
x = 17,272,537.29
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1.5x scale
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.