Finding the Fourth Proportional to 73,993,228.70, 110,989,843.05 and 72,717,770.30
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Solution
The fourth proportional to 73,993,228.70, 110,989,843.05 and 72,717,770.30 is: 109,076,655.45
Step by Step Solution
- Step 1: Write the proportion equation
73,993,228.70 : 110,989,843.05 = 72,717,770.30 : x - Step 2: Convert to fraction form
73,993,228.70/110,989,843.05 = 72,717,770.30/x - Step 3: Cross multiply
73,993,228.70x = 110,989,843.05 × 72,717,770.30 - Step 4: Simplify right side
73,993,228.70x = 8,070,933,912,542,951 - Step 5: Solve for x
x = 8,070,933,912,542,951/73,993,228.70 - Step 6: Final answer
x = 109,076,655.45
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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.