Finding the Fourth Proportional to 28,425,062.84, 39,226,704.91 and 15,372,321.76
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Solution
The fourth proportional to 28,425,062.84, 39,226,704.91 and 15,372,321.76 is: 21,213,867.94
Step by Step Solution
- Step 1: Write the proportion equation
28,425,062.84 : 39,226,704.91 = 15,372,321.76 : x - Step 2: Convert to fraction form
28,425,062.84/39,226,704.91 = 15,372,321.76/x - Step 3: Cross multiply
28,425,062.84x = 39,226,704.91 × 15,372,321.76 - Step 4: Simplify right side
28,425,062.84x = 603,005,529,279,851.88 - Step 5: Solve for x
x = 603,005,529,279,851.88/28,425,062.84 - Step 6: Final answer
x = 21,213,867.94
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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.