Finding the Fourth Proportional to 7,529,985.75, 11,335,949.87 and 6,860,370.09
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Solution
The fourth proportional to 7,529,985.75, 11,335,949.87 and 6,860,370.09 is: 10,327,882.95
Step by Step Solution
- Step 1: Write the proportion equation
7,529,985.75 : 11,335,949.87 = 6,860,370.09 : x - Step 2: Convert to fraction form
7,529,985.75/11,335,949.87 = 6,860,370.09/x - Step 3: Cross multiply
7,529,985.75x = 11,335,949.87 × 6,860,370.09 - Step 4: Simplify right side
7,529,985.75x = 77,768,811,429,887.38 - Step 5: Solve for x
x = 77,768,811,429,887.38/7,529,985.75 - Step 6: Final answer
x = 10,327,882.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.