Finding the Fourth Proportional to 189,072,240.12, 260,919,438.84 and 102,152,112.12
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Solution
The fourth proportional to 189,072,240.12, 260,919,438.84 and 102,152,112.12 is: 140,969,778.29
Step by Step Solution
- Step 1: Write the proportion equation
189,072,240.12 : 260,919,438.84 = 102,152,112.12 : x - Step 2: Convert to fraction form
189,072,240.12/260,919,438.84 = 102,152,112.12/x - Step 3: Cross multiply
189,072,240.12x = 260,919,438.84 × 102,152,112.12 - Step 4: Simplify right side
189,072,240.12x = 26,653,471,770,671,164 - Step 5: Solve for x
x = 26,653,471,770,671,164/189,072,240.12 - Step 6: Final answer
x = 140,969,778.29
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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.