Finding the Fourth Proportional to 131,413,991.68, 196,981,980.56 and 49,497,427.24
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Solution
The fourth proportional to 131,413,991.68, 196,981,980.56 and 49,497,427.24 is: 74,193,783.52
Step by Step Solution
- Step 1: Write the proportion equation
131,413,991.68 : 196,981,980.56 = 49,497,427.24 : x - Step 2: Convert to fraction form
131,413,991.68/196,981,980.56 = 49,497,427.24/x - Step 3: Cross multiply
131,413,991.68x = 196,981,980.56 × 49,497,427.24 - Step 4: Simplify right side
131,413,991.68x = 9,750,101,250,359,694 - Step 5: Solve for x
x = 9,750,101,250,359,694/131,413,991.68 - Step 6: Final answer
x = 74,193,783.52
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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.