Finding the Fourth Proportional to 120,077,584.08, 165,707,207.70 and 65,073,440.58
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Solution
The fourth proportional to 120,077,584.08, 165,707,207.70 and 65,073,440.58 is: 89,801,424.78
Step by Step Solution
- Step 1: Write the proportion equation
120,077,584.08 : 165,707,207.70 = 65,073,440.58 : x - Step 2: Convert to fraction form
120,077,584.08/165,707,207.70 = 65,073,440.58/x - Step 3: Cross multiply
120,077,584.08x = 165,707,207.70 × 65,073,440.58 - Step 4: Simplify right side
120,077,584.08x = 10,783,138,133,943,668 - Step 5: Solve for x
x = 10,783,138,133,943,668/120,077,584.08 - Step 6: Final answer
x = 89,801,424.78
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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.