Finding the Fourth Proportional to 221,530,408.41, 305,729,390.63 and 126,164,949.49
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Solution
The fourth proportional to 221,530,408.41, 305,729,390.63 and 126,164,949.49 is: 174,117,555.25
Step by Step Solution
- Step 1: Write the proportion equation
221,530,408.41 : 305,729,390.63 = 126,164,949.49 : x - Step 2: Convert to fraction form
221,530,408.41/305,729,390.63 = 126,164,949.49/x - Step 3: Cross multiply
221,530,408.41x = 305,729,390.63 × 126,164,949.49 - Step 4: Simplify right side
221,530,408.41x = 38,572,333,127,140,000 - Step 5: Solve for x
x = 38,572,333,127,140,000/221,530,408.41 - Step 6: Final answer
x = 174,117,555.25
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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.