Finding the Fourth Proportional to 86,221,021.58, 118,967,247.81 and 49,544,506.70
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Solution
The fourth proportional to 86,221,021.58, 118,967,247.81 and 49,544,506.70 is: 68,361,212.82
Step by Step Solution
- Step 1: Write the proportion equation
86,221,021.58 : 118,967,247.81 = 49,544,506.70 : x - Step 2: Convert to fraction form
86,221,021.58/118,967,247.81 = 49,544,506.70/x - Step 3: Cross multiply
86,221,021.58x = 118,967,247.81 × 49,544,506.70 - Step 4: Simplify right side
86,221,021.58x = 5,894,173,605,608,269 - Step 5: Solve for x
x = 5,894,173,605,608,269/86,221,021.58 - Step 6: Final answer
x = 68,361,212.82
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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.