Finding the Fourth Proportional to 53,272,915.20, 79,909,372.80 and 27,763,747.20
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Solution
The fourth proportional to 53,272,915.20, 79,909,372.80 and 27,763,747.20 is: 41,645,620.80
Step by Step Solution
- Step 1: Write the proportion equation
53,272,915.20 : 79,909,372.80 = 27,763,747.20 : x - Step 2: Convert to fraction form
53,272,915.20/79,909,372.80 = 27,763,747.20/x - Step 3: Cross multiply
53,272,915.20x = 79,909,372.80 × 27,763,747.20 - Step 4: Simplify right side
53,272,915.20x = 2,218,583,625,329,756 - Step 5: Solve for x
x = 2,218,583,625,329,756/53,272,915.20 - Step 6: Final answer
x = 41,645,620.80
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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.