Finding the Fourth Proportional to 216,161,349.78, 324,275,616.18 and 72,587,774.10
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Solution
The fourth proportional to 216,161,349.78, 324,275,616.18 and 72,587,774.10 is: 108,892,941.30
Step by Step Solution
- Step 1: Write the proportion equation
216,161,349.78 : 324,275,616.18 = 72,587,774.10 : x - Step 2: Convert to fraction form
216,161,349.78/324,275,616.18 = 72,587,774.10/x - Step 3: Cross multiply
216,161,349.78x = 324,275,616.18 × 72,587,774.10 - Step 4: Simplify right side
216,161,349.78x = 23,538,445,173,412,144 - Step 5: Solve for x
x = 23,538,445,173,412,144/216,161,349.78 - Step 6: Final answer
x = 108,892,941.30
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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.