Finding the Fourth Proportional to 79,368,630.72, 109,540,678.56 and 48,446,725.44
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Solution
The fourth proportional to 79,368,630.72, 109,540,678.56 and 48,446,725.44 is: 66,863,786.49
Step by Step Solution
- Step 1: Write the proportion equation
79,368,630.72 : 109,540,678.56 = 48,446,725.44 : x - Step 2: Convert to fraction form
79,368,630.72/109,540,678.56 = 48,446,725.44/x - Step 3: Cross multiply
79,368,630.72x = 109,540,678.56 × 48,446,725.44 - Step 4: Simplify right side
79,368,630.72x = 5,306,887,178,707,614 - Step 5: Solve for x
x = 5,306,887,178,707,614/79,368,630.72 - Step 6: Final answer
x = 66,863,786.49
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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.