Finding the Fourth Proportional to 122,079,455.98, 168,427,983.22 and 75,652,770.22
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Solution
The fourth proportional to 122,079,455.98, 168,427,983.22 and 75,652,770.22 is: 104,375,002.42
Step by Step Solution
- Step 1: Write the proportion equation
122,079,455.98 : 168,427,983.22 = 75,652,770.22 : x - Step 2: Convert to fraction form
122,079,455.98/168,427,983.22 = 75,652,770.22/x - Step 3: Cross multiply
122,079,455.98x = 168,427,983.22 × 75,652,770.22 - Step 4: Simplify right side
122,079,455.98x = 12,742,043,513,160,676 - Step 5: Solve for x
x = 12,742,043,513,160,676/122,079,455.98 - Step 6: Final answer
x = 104,375,002.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.