Finding the Fourth Proportional to 87,801,440.86, 121,161,216.45 and 48,640,881.97
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Solution
The fourth proportional to 87,801,440.86, 121,161,216.45 and 48,640,881.97 is: 67,121,773.53
Step by Step Solution
- Step 1: Write the proportion equation
87,801,440.86 : 121,161,216.45 = 48,640,881.97 : x - Step 2: Convert to fraction form
87,801,440.86/121,161,216.45 = 48,640,881.97/x - Step 3: Cross multiply
87,801,440.86x = 121,161,216.45 × 48,640,881.97 - Step 4: Simplify right side
87,801,440.86x = 5,893,388,428,686,072 - Step 5: Solve for x
x = 5,893,388,428,686,072/87,801,440.86 - Step 6: Final answer
x = 67,121,773.53
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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.