Finding the Fourth Proportional to 28,569,432.26, 39,419,682.80 and 16,970,906.18
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Solution
The fourth proportional to 28,569,432.26, 39,419,682.80 and 16,970,906.18 is: 23,416,206.96
Step by Step Solution
- Step 1: Write the proportion equation
28,569,432.26 : 39,419,682.80 = 16,970,906.18 : x - Step 2: Convert to fraction form
28,569,432.26/39,419,682.80 = 16,970,906.18/x - Step 3: Cross multiply
28,569,432.26x = 39,419,682.80 × 16,970,906.18 - Step 4: Simplify right side
28,569,432.26x = 668,987,738,444,159.62 - Step 5: Solve for x
x = 668,987,738,444,159.62/28,569,432.26 - Step 6: Final answer
x = 23,416,206.96
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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.