Finding the Fourth Proportional to 217,225,027.55, 299,780,786.48 and 123,140,997.99
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Solution
The fourth proportional to 217,225,027.55, 299,780,786.48 and 123,140,997.99 is: 169,940,386.89
Step by Step Solution
- Step 1: Write the proportion equation
217,225,027.55 : 299,780,786.48 = 123,140,997.99 : x - Step 2: Convert to fraction form
217,225,027.55/299,780,786.48 = 123,140,997.99/x - Step 3: Cross multiply
217,225,027.55x = 299,780,786.48 × 123,140,997.99 - Step 4: Simplify right side
217,225,027.55x = 36,915,305,224,758,592 - Step 5: Solve for x
x = 36,915,305,224,758,592/217,225,027.55 - Step 6: Final answer
x = 169,940,386.89
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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.