Finding the Fourth Proportional to 81,520,105.83, 112,498,235.28 and 44,350,652.74
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Solution
The fourth proportional to 81,520,105.83, 112,498,235.28 and 44,350,652.74 is: 61,204,166.95
Step by Step Solution
- Step 1: Write the proportion equation
81,520,105.83 : 112,498,235.28 = 44,350,652.74 : x - Step 2: Convert to fraction form
81,520,105.83/112,498,235.28 = 44,350,652.74/x - Step 3: Cross multiply
81,520,105.83x = 112,498,235.28 × 44,350,652.74 - Step 4: Simplify right side
81,520,105.83x = 4,989,370,166,571,160 - Step 5: Solve for x
x = 4,989,370,166,571,160/81,520,105.83 - Step 6: Final answer
x = 61,204,166.95
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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.