Finding the Fourth Proportional to 221,733,357.42, 305,994,015.87 and 122,620,773.44
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Solution
The fourth proportional to 221,733,357.42, 305,994,015.87 and 122,620,773.44 is: 169,217,763.75
Step by Step Solution
- Step 1: Write the proportion equation
221,733,357.42 : 305,994,015.87 = 122,620,773.44 : x - Step 2: Convert to fraction form
221,733,357.42/305,994,015.87 = 122,620,773.44/x - Step 3: Cross multiply
221,733,357.42x = 305,994,015.87 × 122,620,773.44 - Step 4: Simplify right side
221,733,357.42x = 37,521,222,892,461,064 - Step 5: Solve for x
x = 37,521,222,892,461,064/221,733,357.42 - Step 6: Final answer
x = 169,217,763.75
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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.