Finding the Fourth Proportional to 28,722,027.22, 39,636,209.46 and 16,332,121.56
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Solution
The fourth proportional to 28,722,027.22, 39,636,209.46 and 16,332,121.56 is: 22,538,220.79
Step by Step Solution
- Step 1: Write the proportion equation
28,722,027.22 : 39,636,209.46 = 16,332,121.56 : x - Step 2: Convert to fraction form
28,722,027.22/39,636,209.46 = 16,332,121.56/x - Step 3: Cross multiply
28,722,027.22x = 39,636,209.46 × 16,332,121.56 - Step 4: Simplify right side
28,722,027.22x = 647,343,391,078,342 - Step 5: Solve for x
x = 647,343,391,078,342/28,722,027.22 - Step 6: Final answer
x = 22,538,220.79
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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.