Finding the Fourth Proportional to 91,765,179.24, 126,639,288.60 and 49,947,223.31
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Solution
The fourth proportional to 91,765,179.24, 126,639,288.60 and 49,947,223.31 is: 68,928,986.79
Step by Step Solution
- Step 1: Write the proportion equation
91,765,179.24 : 126,639,288.60 = 49,947,223.31 : x - Step 2: Convert to fraction form
91,765,179.24/126,639,288.60 = 49,947,223.31/x - Step 3: Cross multiply
91,765,179.24x = 126,639,288.60 × 49,947,223.31 - Step 4: Simplify right side
91,765,179.24x = 6,325,280,827,178,136 - Step 5: Solve for x
x = 6,325,280,827,178,136/91,765,179.24 - Step 6: Final answer
x = 68,928,986.79
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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.