Finding the Fourth Proportional to 80,744,538.70, 120,972,466.05 and 49,138,014.70
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Solution
The fourth proportional to 80,744,538.70, 120,972,466.05 and 49,138,014.70 is: 73,619,181.07
Step by Step Solution
- Step 1: Write the proportion equation
80,744,538.70 : 120,972,466.05 = 49,138,014.70 : x - Step 2: Convert to fraction form
80,744,538.70/120,972,466.05 = 49,138,014.70/x - Step 3: Cross multiply
80,744,538.70x = 120,972,466.05 × 49,138,014.70 - Step 4: Simplify right side
80,744,538.70x = 5,944,346,815,060,151 - Step 5: Solve for x
x = 5,944,346,815,060,151/80,744,538.70 - Step 6: Final answer
x = 73,619,181.07
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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.