Finding the Fourth Proportional to 153,846,030.24, 212,299,112.43 and 84,217,942.62
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Solution
The fourth proportional to 153,846,030.24, 212,299,112.43 and 84,217,942.62 is: 116,216,157.42
Step by Step Solution
- Step 1: Write the proportion equation
153,846,030.24 : 212,299,112.43 = 84,217,942.62 : x - Step 2: Convert to fraction form
153,846,030.24/212,299,112.43 = 84,217,942.62/x - Step 3: Cross multiply
153,846,030.24x = 212,299,112.43 × 84,217,942.62 - Step 4: Simplify right side
153,846,030.24x = 17,879,394,468,906,670 - Step 5: Solve for x
x = 17,879,394,468,906,670/153,846,030.24 - Step 6: Final answer
x = 116,216,157.42
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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.