Finding the Fourth Proportional to 7,773,881.46, 10,731,396.36 and 5,021,910.72
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Solution
The fourth proportional to 7,773,881.46, 10,731,396.36 and 5,021,910.72 is: 6,932,458.99
Step by Step Solution
- Step 1: Write the proportion equation
7,773,881.46 : 10,731,396.36 = 5,021,910.72 : x - Step 2: Convert to fraction form
7,773,881.46/10,731,396.36 = 5,021,910.72/x - Step 3: Cross multiply
7,773,881.46x = 10,731,396.36 × 5,021,910.72 - Step 4: Simplify right side
7,773,881.46x = 53,892,114,420,852.98 - Step 5: Solve for x
x = 53,892,114,420,852.98/7,773,881.46 - Step 6: Final answer
x = 6,932,458.99
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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.