Finding the Fourth Proportional to 204,768,135.80, 307,152,203.70 and 128,240,631.80
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Solution
The fourth proportional to 204,768,135.80, 307,152,203.70 and 128,240,631.80 is: 192,360,947.70
Step by Step Solution
- Step 1: Write the proportion equation
204,768,135.80 : 307,152,203.70 = 128,240,631.80 : x - Step 2: Convert to fraction form
204,768,135.80/307,152,203.70 = 128,240,631.80/x - Step 3: Cross multiply
204,768,135.80x = 307,152,203.70 × 128,240,631.80 - Step 4: Simplify right side
204,768,135.80x = 39,389,392,661,250,296 - Step 5: Solve for x
x = 39,389,392,661,250,296/204,768,135.80 - Step 6: Final answer
x = 192,360,947.70
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1.5x scale
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.