Finding the Fourth Proportional to 13,149,756.10, 18,146,610.93 and 7,348,536.10
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Solution
The fourth proportional to 13,149,756.10, 18,146,610.93 and 7,348,536.10 is: 10,140,950.49
Step by Step Solution
- Step 1: Write the proportion equation
13,149,756.10 : 18,146,610.93 = 7,348,536.10 : x - Step 2: Convert to fraction form
13,149,756.10/18,146,610.93 = 7,348,536.10/x - Step 3: Cross multiply
13,149,756.10x = 18,146,610.93 × 7,348,536.10 - Step 4: Simplify right side
13,149,756.10x = 133,351,025,511,759.56 - Step 5: Solve for x
x = 133,351,025,511,759.56/13,149,756.10 - Step 6: Final answer
x = 10,140,950.49
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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.