Finding the Fourth Proportional to 110,961,982.80, 166,442,974.20 and 74,682,277.20
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Solution
The fourth proportional to 110,961,982.80, 166,442,974.20 and 74,682,277.20 is: 112,023,415.80
Step by Step Solution
- Step 1: Write the proportion equation
110,961,982.80 : 166,442,974.20 = 74,682,277.20 : x - Step 2: Convert to fraction form
110,961,982.80/166,442,974.20 = 74,682,277.20/x - Step 3: Cross multiply
110,961,982.80x = 166,442,974.20 × 74,682,277.20 - Step 4: Simplify right side
110,961,982.80x = 12,430,340,337,196,848 - Step 5: Solve for x
x = 12,430,340,337,196,848/110,961,982.80 - Step 6: Final answer
x = 112,023,415.80
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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.