Finding the Fourth Proportional to 235,378,788.24, 324,794,509.32 and 130,930,467.60
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Solution
The fourth proportional to 235,378,788.24, 324,794,509.32 and 130,930,467.60 is: 180,668,348.65
Step by Step Solution
- Step 1: Write the proportion equation
235,378,788.24 : 324,794,509.32 = 130,930,467.60 : x - Step 2: Convert to fraction form
235,378,788.24/324,794,509.32 = 130,930,467.60/x - Step 3: Cross multiply
235,378,788.24x = 324,794,509.32 × 130,930,467.60 - Step 4: Simplify right side
235,378,788.24x = 42,525,496,979,180,152 - Step 5: Solve for x
x = 42,525,496,979,180,152/235,378,788.24 - Step 6: Final answer
x = 180,668,348.65
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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.