Finding the Fourth Proportional to 81,576,200.70, 122,364,301.05 and 61,420,808.70
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Solution
The fourth proportional to 81,576,200.70, 122,364,301.05 and 61,420,808.70 is: 92,131,213.05
Step by Step Solution
- Step 1: Write the proportion equation
81,576,200.70 : 122,364,301.05 = 61,420,808.70 : x - Step 2: Convert to fraction form
81,576,200.70/122,364,301.05 = 61,420,808.70/x - Step 3: Cross multiply
81,576,200.70x = 122,364,301.05 × 61,420,808.70 - Step 4: Simplify right side
81,576,200.70x = 7,515,714,326,501,259 - Step 5: Solve for x
x = 7,515,714,326,501,259/81,576,200.70 - Step 6: Final answer
x = 92,131,213.05
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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.