Finding the Fourth Proportional to 538,414,349.40, 807,621,524.10 and 460,930,251.60
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Solution
The fourth proportional to 538,414,349.40, 807,621,524.10 and 460,930,251.60 is: 691,395,377.40
Step by Step Solution
- Step 1: Write the proportion equation
538,414,349.40 : 807,621,524.10 = 460,930,251.60 : x - Step 2: Convert to fraction form
538,414,349.40/807,621,524.10 = 460,930,251.60/x - Step 3: Cross multiply
538,414,349.40x = 807,621,524.10 × 460,930,251.60 - Step 4: Simplify right side
538,414,349.40x = 372,257,192,300,988,480 - Step 5: Solve for x
x = 372,257,192,300,988,480/538,414,349.40 - Step 6: Final answer
x = 691,395,377.40
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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.