Finding the Fourth Proportional to 221,733,358.42, 305,994,017.25 and 122,620,774.44
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Solution
The fourth proportional to 221,733,358.42, 305,994,017.25 and 122,620,774.44 is: 169,217,765.14
Step by Step Solution
- Step 1: Write the proportion equation
221,733,358.42 : 305,994,017.25 = 122,620,774.44 : x - Step 2: Convert to fraction form
221,733,358.42/305,994,017.25 = 122,620,774.44/x - Step 3: Cross multiply
221,733,358.42x = 305,994,017.25 × 122,620,774.44 - Step 4: Simplify right side
221,733,358.42x = 37,521,223,369,201,720 - Step 5: Solve for x
x = 37,521,223,369,201,720/221,733,358.42 - Step 6: Final answer
x = 169,217,765.14
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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.