Finding the Fourth Proportional to 81,576,201.70, 122,364,302.55 and 61,420,809.70
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Solution
The fourth proportional to 81,576,201.70, 122,364,302.55 and 61,420,809.70 is: 92,131,214.55
Step by Step Solution
- Step 1: Write the proportion equation
81,576,201.70 : 122,364,302.55 = 61,420,809.70 : x - Step 2: Convert to fraction form
81,576,201.70/122,364,302.55 = 61,420,809.70/x - Step 3: Cross multiply
81,576,201.70x = 122,364,302.55 × 61,420,809.70 - Step 4: Simplify right side
81,576,201.70x = 7,515,714,540,996,775 - Step 5: Solve for x
x = 7,515,714,540,996,775/81,576,201.70 - Step 6: Final answer
x = 92,131,214.55
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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.