Finding the Fourth Proportional to 131,471,996.80, 197,207,995.20 and 122,905,955.20
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Solution
The fourth proportional to 131,471,996.80, 197,207,995.20 and 122,905,955.20 is: 184,358,932.80
Step by Step Solution
- Step 1: Write the proportion equation
131,471,996.80 : 197,207,995.20 = 122,905,955.20 : x - Step 2: Convert to fraction form
131,471,996.80/197,207,995.20 = 122,905,955.20/x - Step 3: Cross multiply
131,471,996.80x = 197,207,995.20 × 122,905,955.20 - Step 4: Simplify right side
131,471,996.80x = 24,238,037,023,133,016 - Step 5: Solve for x
x = 24,238,037,023,133,016/131,471,996.80 - Step 6: Final answer
x = 184,358,932.80
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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.