Finding the Fourth Proportional to 6,128,944.68, 8,458,327.75 and 3,375,631.56
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Solution
The fourth proportional to 6,128,944.68, 8,458,327.75 and 3,375,631.56 is: 4,658,583.10
Step by Step Solution
- Step 1: Write the proportion equation
6,128,944.68 : 8,458,327.75 = 3,375,631.56 : x - Step 2: Convert to fraction form
6,128,944.68/8,458,327.75 = 3,375,631.56/x - Step 3: Cross multiply
6,128,944.68x = 8,458,327.75 × 3,375,631.56 - Step 4: Simplify right side
6,128,944.68x = 28,552,198,127,332.75 - Step 5: Solve for x
x = 28,552,198,127,332.75/6,128,944.68 - Step 6: Final answer
x = 4,658,583.10
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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.