Finding the Fourth Proportional to 81,777,566.17, 122,667,417.71 and 27,190,151.68
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Solution
The fourth proportional to 81,777,566.17, 122,667,417.71 and 27,190,151.68 is: 40,785,582.77
Step by Step Solution
- Step 1: Write the proportion equation
81,777,566.17 : 122,667,417.71 = 27,190,151.68 : x - Step 2: Convert to fraction form
81,777,566.17/122,667,417.71 = 27,190,151.68/x - Step 3: Cross multiply
81,777,566.17x = 122,667,417.71 × 27,190,151.68 - Step 4: Simplify right side
81,777,566.17x = 3,335,345,693,592,867.50 - Step 5: Solve for x
x = 3,335,345,693,592,867.50/81,777,566.17 - Step 6: Final answer
x = 40,785,582.77
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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.