Finding the Fourth Proportional to 81,777,564.14, 122,667,414.68 and 27,190,149.66
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Solution
The fourth proportional to 81,777,564.14, 122,667,414.68 and 27,190,149.66 is: 40,785,579.74
Step by Step Solution
- Step 1: Write the proportion equation
81,777,564.14 : 122,667,414.68 = 27,190,149.66 : x - Step 2: Convert to fraction form
81,777,564.14/122,667,414.68 = 27,190,149.66/x - Step 3: Cross multiply
81,777,564.14x = 122,667,414.68 × 27,190,149.66 - Step 4: Simplify right side
81,777,564.14x = 3,335,345,363,554,481 - Step 5: Solve for x
x = 3,335,345,363,554,481/81,777,564.14 - Step 6: Final answer
x = 40,785,579.74
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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.