Finding the Fourth Proportional to 131,872,663.45, 181,995,170.07 and 73,154,260.09
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Solution
The fourth proportional to 131,872,663.45, 181,995,170.07 and 73,154,260.09 is: 100,958,922.48
Step by Step Solution
- Step 1: Write the proportion equation
131,872,663.45 : 181,995,170.07 = 73,154,260.09 : x - Step 2: Convert to fraction form
131,872,663.45/181,995,170.07 = 73,154,260.09/x - Step 3: Cross multiply
131,872,663.45x = 181,995,170.07 × 73,154,260.09 - Step 4: Simplify right side
131,872,663.45x = 13,313,722,006,243,904 - Step 5: Solve for x
x = 13,313,722,006,243,904/131,872,663.45 - Step 6: Final answer
x = 100,958,922.48
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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.