Finding the Fourth Proportional to 8,062,542.56, 11,128,740.05 and 5,485,718.01
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Solution
The fourth proportional to 8,062,542.56, 11,128,740.05 and 5,485,718.01 is: 7,571,945.12
Step by Step Solution
- Step 1: Write the proportion equation
8,062,542.56 : 11,128,740.05 = 5,485,718.01 : x - Step 2: Convert to fraction form
8,062,542.56/11,128,740.05 = 5,485,718.01/x - Step 3: Cross multiply
8,062,542.56x = 11,128,740.05 × 5,485,718.01 - Step 4: Simplify right side
8,062,542.56x = 61,049,129,776,340.38 - Step 5: Solve for x
x = 61,049,129,776,340.38/8,062,542.56 - Step 6: Final answer
x = 7,571,945.12
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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.