Finding the Fourth Proportional to 129,029,589.20, 193,544,383.80 and 97,179,093.20
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Solution
The fourth proportional to 129,029,589.20, 193,544,383.80 and 97,179,093.20 is: 145,768,639.80
Step by Step Solution
- Step 1: Write the proportion equation
129,029,589.20 : 193,544,383.80 = 97,179,093.20 : x - Step 2: Convert to fraction form
129,029,589.20/193,544,383.80 = 97,179,093.20/x - Step 3: Cross multiply
129,029,589.20x = 193,544,383.80 × 97,179,093.20 - Step 4: Simplify right side
129,029,589.20x = 18,808,467,711,636,772 - Step 5: Solve for x
x = 18,808,467,711,636,772/129,029,589.20 - Step 6: Final answer
x = 145,768,639.80
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1.5x scale
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.