Finding the Fourth Proportional to 76,944,661.03, 115,417,221.18 and 18,652,107.88
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Solution
The fourth proportional to 76,944,661.03, 115,417,221.18 and 18,652,107.88 is: 27,978,217.49
Step by Step Solution
- Step 1: Write the proportion equation
76,944,661.03 : 115,417,221.18 = 18,652,107.88 : x - Step 2: Convert to fraction form
76,944,661.03/115,417,221.18 = 18,652,107.88/x - Step 3: Cross multiply
76,944,661.03x = 115,417,221.18 × 18,652,107.88 - Step 4: Simplify right side
76,944,661.03x = 2,152,774,460,659,181 - Step 5: Solve for x
x = 2,152,774,460,659,181/76,944,661.03 - Step 6: Final answer
x = 27,978,217.49
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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.