Finding the Fourth Proportional to 81,777,572.16, 122,667,426.68 and 27,190,157.68
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Solution
The fourth proportional to 81,777,572.16, 122,667,426.68 and 27,190,157.68 is: 40,785,591.76
Step by Step Solution
- Step 1: Write the proportion equation
81,777,572.16 : 122,667,426.68 = 27,190,157.68 : x - Step 2: Convert to fraction form
81,777,572.16/122,667,426.68 = 27,190,157.68/x - Step 3: Cross multiply
81,777,572.16x = 122,667,426.68 × 27,190,157.68 - Step 4: Simplify right side
81,777,572.16x = 3,335,346,673,629,039 - Step 5: Solve for x
x = 3,335,346,673,629,039/81,777,572.16 - Step 6: Final answer
x = 40,785,591.76
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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.