Finding the Fourth Proportional to 76,944,665.82, 115,417,228.35 and 18,652,112.67
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Solution
The fourth proportional to 76,944,665.82, 115,417,228.35 and 18,652,112.67 is: 27,978,224.67
Step by Step Solution
- Step 1: Write the proportion equation
76,944,665.82 : 115,417,228.35 = 18,652,112.67 : x - Step 2: Convert to fraction form
76,944,665.82/115,417,228.35 = 18,652,112.67/x - Step 3: Cross multiply
76,944,665.82x = 115,417,228.35 × 18,652,112.67 - Step 4: Simplify right side
76,944,665.82x = 2,152,775,147,243,318.25 - Step 5: Solve for x
x = 2,152,775,147,243,318.25/76,944,665.82 - Step 6: Final answer
x = 27,978,224.67
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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.