Finding the Fourth Proportional to 28,445,982.75, 39,255,559.52 and 15,393,240.26
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Solution
The fourth proportional to 28,445,982.75, 39,255,559.52 and 15,393,240.26 is: 21,242,727.46
Step by Step Solution
- Step 1: Write the proportion equation
28,445,982.75 : 39,255,559.52 = 15,393,240.26 : x - Step 2: Convert to fraction form
28,445,982.75/39,255,559.52 = 15,393,240.26/x - Step 3: Cross multiply
28,445,982.75x = 39,255,559.52 × 15,393,240.26 - Step 4: Simplify right side
28,445,982.75x = 604,270,258,958,846.38 - Step 5: Solve for x
x = 604,270,258,958,846.38/28,445,982.75 - Step 6: Final answer
x = 21,242,727.46
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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.