Finding the Fourth Proportional to 147,451,379.40, 221,318,786.70 and 74,750,250.60
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Solution
The fourth proportional to 147,451,379.40, 221,318,786.70 and 74,750,250.60 is: 112,197,219.42
Step by Step Solution
- Step 1: Write the proportion equation
147,451,379.40 : 221,318,786.70 = 74,750,250.60 : x - Step 2: Convert to fraction form
147,451,379.40/221,318,786.70 = 74,750,250.60/x - Step 3: Cross multiply
147,451,379.40x = 221,318,786.70 × 74,750,250.60 - Step 4: Simplify right side
147,451,379.40x = 16,543,634,768,312,944 - Step 5: Solve for x
x = 16,543,634,768,312,944/147,451,379.40 - Step 6: Final answer
x = 112,197,219.42
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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.