Finding the Fourth Proportional to 7,420,762.70, 11,107,524.45 and 5,294,998.70
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Solution
The fourth proportional to 7,420,762.70, 11,107,524.45 and 5,294,998.70 is: 7,925,644.56
Step by Step Solution
- Step 1: Write the proportion equation
7,420,762.70 : 11,107,524.45 = 5,294,998.70 : x - Step 2: Convert to fraction form
7,420,762.70/11,107,524.45 = 5,294,998.70/x - Step 3: Cross multiply
7,420,762.70x = 11,107,524.45 × 5,294,998.70 - Step 4: Simplify right side
7,420,762.70x = 58,814,327,522,968.21 - Step 5: Solve for x
x = 58,814,327,522,968.21/7,420,762.70 - Step 6: Final answer
x = 7,925,644.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.