Finding the Fourth Proportional to 118,457,863.28, 163,471,293.32 and 66,247,106.54
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Solution
The fourth proportional to 118,457,863.28, 163,471,293.32 and 66,247,106.54 is: 91,420,694.96
Step by Step Solution
- Step 1: Write the proportion equation
118,457,863.28 : 163,471,293.32 = 66,247,106.54 : x - Step 2: Convert to fraction form
118,457,863.28/163,471,293.32 = 66,247,106.54/x - Step 3: Cross multiply
118,457,863.28x = 163,471,293.32 × 66,247,106.54 - Step 4: Simplify right side
118,457,863.28x = 10,829,500,184,801,630 - Step 5: Solve for x
x = 10,829,500,184,801,630/118,457,863.28 - Step 6: Final answer
x = 91,420,694.96
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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.