Finding the Fourth Proportional to 221,435,774.70, 332,153,662.05 and 129,224,856.30
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Solution
The fourth proportional to 221,435,774.70, 332,153,662.05 and 129,224,856.30 is: 193,837,284.45
Step by Step Solution
- Step 1: Write the proportion equation
221,435,774.70 : 332,153,662.05 = 129,224,856.30 : x - Step 2: Convert to fraction form
221,435,774.70/332,153,662.05 = 129,224,856.30/x - Step 3: Cross multiply
221,435,774.70x = 332,153,662.05 × 129,224,856.30 - Step 4: Simplify right side
221,435,774.70x = 42,922,509,247,930,016 - Step 5: Solve for x
x = 42,922,509,247,930,016/221,435,774.70 - Step 6: Final answer
x = 193,837,284.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.