Finding the Fourth Proportional to 11,240,728.68, 15,508,399.14 and 7,318,693.92
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Solution
The fourth proportional to 11,240,728.68, 15,508,399.14 and 7,318,693.92 is: 10,097,319.29
Step by Step Solution
- Step 1: Write the proportion equation
11,240,728.68 : 15,508,399.14 = 7,318,693.92 : x - Step 2: Convert to fraction form
11,240,728.68/15,508,399.14 = 7,318,693.92/x - Step 3: Cross multiply
11,240,728.68x = 15,508,399.14 × 7,318,693.92 - Step 4: Simplify right side
11,240,728.68x = 113,501,226,494,851.23 - Step 5: Solve for x
x = 113,501,226,494,851.23/11,240,728.68 - Step 6: Final answer
x = 10,097,319.29
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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.