Finding the Fourth Proportional to 738,239,282.40, 1,107,358,923.60 and 193,035,928.80
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Solution
The fourth proportional to 738,239,282.40, 1,107,358,923.60 and 193,035,928.80 is: 289,553,893.20
Step by Step Solution
- Step 1: Write the proportion equation
738,239,282.40 : 1,107,358,923.60 = 193,035,928.80 : x - Step 2: Convert to fraction form
738,239,282.40/1,107,358,923.60 = 193,035,928.80/x - Step 3: Cross multiply
738,239,282.40x = 1,107,358,923.60 × 193,035,928.80 - Step 4: Simplify right side
738,239,282.40x = 213,760,058,332,094,240 - Step 5: Solve for x
x = 213,760,058,332,094,240/738,239,282.40 - Step 6: Final answer
x = 289,553,893.20
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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.