Finding the Fourth Proportional to 7,438,423.92, 11,157,584.04 and 2,119,639.92
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Solution
The fourth proportional to 7,438,423.92, 11,157,584.04 and 2,119,639.92 is: 3,179,445.11
Step by Step Solution
- Step 1: Write the proportion equation
7,438,423.92 : 11,157,584.04 = 2,119,639.92 : x - Step 2: Convert to fraction form
7,438,423.92/11,157,584.04 = 2,119,639.92/x - Step 3: Cross multiply
7,438,423.92x = 11,157,584.04 × 2,119,639.92 - Step 4: Simplify right side
7,438,423.92x = 23,650,060,541,938.88 - Step 5: Solve for x
x = 23,650,060,541,938.88/7,438,423.92 - Step 6: Final answer
x = 3,179,445.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.