Finding the Fourth Proportional to 28,717,536.27, 39,630,452.97 and 15,664,853.23
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Solution
The fourth proportional to 28,717,536.27, 39,630,452.97 and 15,664,853.23 is: 21,617,635.42
Step by Step Solution
- Step 1: Write the proportion equation
28,717,536.27 : 39,630,452.97 = 15,664,853.23 : x - Step 2: Convert to fraction form
28,717,536.27/39,630,452.97 = 15,664,853.23/x - Step 3: Cross multiply
28,717,536.27x = 39,630,452.97 × 15,664,853.23 - Step 4: Simplify right side
28,717,536.27x = 620,805,229,213,467.62 - Step 5: Solve for x
x = 620,805,229,213,467.62/28,717,536.27 - Step 6: Final answer
x = 21,617,635.42
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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.