Finding the Fourth Proportional to 30,991,393.14, 42,670,771.26 and 26,335,357.62
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Solution
The fourth proportional to 30,991,393.14, 42,670,771.26 and 26,335,357.62 is: 36,260,067.95
Step by Step Solution
- Step 1: Write the proportion equation
30,991,393.14 : 42,670,771.26 = 26,335,357.62 : x - Step 2: Convert to fraction form
30,991,393.14/42,670,771.26 = 26,335,357.62/x - Step 3: Cross multiply
30,991,393.14x = 42,670,771.26 × 26,335,357.62 - Step 4: Simplify right side
30,991,393.14x = 1,123,750,021,053,318 - Step 5: Solve for x
x = 1,123,750,021,053,318/30,991,393.14 - Step 6: Final answer
x = 36,260,067.95
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1.5x scale
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.