Finding the Fourth Proportional to 80,642,607.20, 120,979,657.20 and 32,112,202.40
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Solution
The fourth proportional to 80,642,607.20, 120,979,657.20 and 32,112,202.40 is: 48,174,573.88
Step by Step Solution
- Step 1: Write the proportion equation
80,642,607.20 : 120,979,657.20 = 32,112,202.40 : x - Step 2: Convert to fraction form
80,642,607.20/120,979,657.20 = 32,112,202.40/x - Step 3: Cross multiply
80,642,607.20x = 120,979,657.20 × 32,112,202.40 - Step 4: Simplify right side
80,642,607.20x = 3,884,923,238,289,017 - Step 5: Solve for x
x = 3,884,923,238,289,017/80,642,607.20 - Step 6: Final answer
x = 48,174,573.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.