Finding the Fourth Proportional to 28,425,441.97, 39,227,227.32 and 15,372,700.62
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Solution
The fourth proportional to 28,425,441.97, 39,227,227.32 and 15,372,700.62 is: 21,214,390.35
Step by Step Solution
- Step 1: Write the proportion equation
28,425,441.97 : 39,227,227.32 = 15,372,700.62 : x - Step 2: Convert to fraction form
28,425,441.97/39,227,227.32 = 15,372,700.62/x - Step 3: Cross multiply
28,425,441.97x = 39,227,227.32 × 15,372,700.62 - Step 4: Simplify right side
28,425,441.97x = 603,028,421,743,044.88 - Step 5: Solve for x
x = 603,028,421,743,044.88/28,425,441.97 - Step 6: Final answer
x = 21,214,390.35
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1.5x scale
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.