Finding the Fourth Proportional to 221,266,471.08, 305,339,729.04 and 122,145,092.76
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Solution
The fourth proportional to 221,266,471.08, 305,339,729.04 and 122,145,092.76 is: 168,555,811.21
Step by Step Solution
- Step 1: Write the proportion equation
221,266,471.08 : 305,339,729.04 = 122,145,092.76 : x - Step 2: Convert to fraction form
221,266,471.08/305,339,729.04 = 122,145,092.76/x - Step 3: Cross multiply
221,266,471.08x = 305,339,729.04 × 122,145,092.76 - Step 4: Simplify right side
221,266,471.08x = 37,295,749,526,904,072 - Step 5: Solve for x
x = 37,295,749,526,904,072/221,266,471.08 - Step 6: Final answer
x = 168,555,811.21
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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.