Finding the Fourth Proportional to 7,169,438.08, 9,893,769.60 and 3,906,242.56
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Solution
The fourth proportional to 7,169,438.08, 9,893,769.60 and 3,906,242.56 is: 5,390,584.79
Step by Step Solution
- Step 1: Write the proportion equation
7,169,438.08 : 9,893,769.60 = 3,906,242.56 : x - Step 2: Convert to fraction form
7,169,438.08/9,893,769.60 = 3,906,242.56/x - Step 3: Cross multiply
7,169,438.08x = 9,893,769.60 × 3,906,242.56 - Step 4: Simplify right side
7,169,438.08x = 38,647,463,890,354.17 - Step 5: Solve for x
x = 38,647,463,890,354.17/7,169,438.08 - Step 6: Final answer
x = 5,390,584.79
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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.