Finding the Fourth Proportional to 129,353,087.40, 194,029,631.10 and 38,464,866.60
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Solution
The fourth proportional to 129,353,087.40, 194,029,631.10 and 38,464,866.60 is: 57,697,299.90
Step by Step Solution
- Step 1: Write the proportion equation
129,353,087.40 : 194,029,631.10 = 38,464,866.60 : x - Step 2: Convert to fraction form
129,353,087.40/194,029,631.10 = 38,464,866.60/x - Step 3: Cross multiply
129,353,087.40x = 194,029,631.10 × 38,464,866.60 - Step 4: Simplify right side
129,353,087.40x = 7,463,323,876,708,711 - Step 5: Solve for x
x = 7,463,323,876,708,711/129,353,087.40 - Step 6: Final answer
x = 57,697,299.90
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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.