Finding the Fourth Proportional to 79,255,672.14, 109,384,782.60 and 48,333,778.80
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Solution
The fourth proportional to 79,255,672.14, 109,384,782.60 and 48,333,778.80 is: 66,707,905.49
Step by Step Solution
- Step 1: Write the proportion equation
79,255,672.14 : 109,384,782.60 = 48,333,778.80 : x - Step 2: Convert to fraction form
79,255,672.14/109,384,782.60 = 48,333,778.80/x - Step 3: Cross multiply
79,255,672.14x = 109,384,782.60 × 48,333,778.80 - Step 4: Simplify right side
79,255,672.14x = 5,286,979,886,274,488 - Step 5: Solve for x
x = 5,286,979,886,274,488/79,255,672.14 - Step 6: Final answer
x = 66,707,905.49
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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.