Finding the Fourth Proportional to 91,765,238.97, 126,639,370.99 and 49,947,282.91
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Solution
The fourth proportional to 91,765,238.97, 126,639,370.99 and 49,947,282.91 is: 68,929,069.02
Step by Step Solution
- Step 1: Write the proportion equation
91,765,238.97 : 126,639,370.99 = 49,947,282.91 : x - Step 2: Convert to fraction form
91,765,238.97/126,639,370.99 = 49,947,282.91/x - Step 3: Cross multiply
91,765,238.97x = 126,639,370.99 × 49,947,282.91 - Step 4: Simplify right side
91,765,238.97x = 6,325,292,490,381,976 - Step 5: Solve for x
x = 6,325,292,490,381,976/91,765,238.97 - Step 6: Final answer
x = 68,929,069.02
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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.