Finding the Fourth Proportional to 108,736,163.40, 163,104,245.10 and 104,555,785.80
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Solution
The fourth proportional to 108,736,163.40, 163,104,245.10 and 104,555,785.80 is: 156,833,678.70
Step by Step Solution
- Step 1: Write the proportion equation
108,736,163.40 : 163,104,245.10 = 104,555,785.80 : x - Step 2: Convert to fraction form
108,736,163.40/163,104,245.10 = 104,555,785.80/x - Step 3: Cross multiply
108,736,163.40x = 163,104,245.10 × 104,555,785.80 - Step 4: Simplify right side
108,736,163.40x = 17,053,492,513,746,298 - Step 5: Solve for x
x = 17,053,492,513,746,298/108,736,163.40 - Step 6: Final answer
x = 156,833,678.70
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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.