Finding the Fourth Proportional to 216,326,231.67, 324,489,347.52 and 52,563,146.79
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Solution
The fourth proportional to 216,326,231.67, 324,489,347.52 and 52,563,146.79 is: 78,844,720.19
Step by Step Solution
- Step 1: Write the proportion equation
216,326,231.67 : 324,489,347.52 = 52,563,146.79 : x - Step 2: Convert to fraction form
216,326,231.67/324,489,347.52 = 52,563,146.79/x - Step 3: Cross multiply
216,326,231.67x = 324,489,347.52 × 52,563,146.79 - Step 4: Simplify right side
216,326,231.67x = 17,056,181,205,485,082 - Step 5: Solve for x
x = 17,056,181,205,485,082/216,326,231.67 - Step 6: Final answer
x = 78,844,720.19
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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.