Finding the Fourth Proportional to 28,507,630.70, 39,340,838.64 and 16,747,394.78
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Solution
The fourth proportional to 28,507,630.70, 39,340,838.64 and 16,747,394.78 is: 23,111,585.90
Step by Step Solution
- Step 1: Write the proportion equation
28,507,630.70 : 39,340,838.64 = 16,747,394.78 : x - Step 2: Convert to fraction form
28,507,630.70/39,340,838.64 = 16,747,394.78/x - Step 3: Cross multiply
28,507,630.70x = 39,340,838.64 × 16,747,394.78 - Step 4: Simplify right side
28,507,630.70x = 658,856,555,546,456.75 - Step 5: Solve for x
x = 658,856,555,546,456.75/28,507,630.70 - Step 6: Final answer
x = 23,111,585.90
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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.