Finding the Fourth Proportional to 31,391,201.40, 43,846,905 and 31,391,201.40
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Solution
The fourth proportional to 31,391,201.40, 43,846,905 and 31,391,201.40 is: 43,846,905
Step by Step Solution
- Step 1: Write the proportion equation
31,391,201.40 : 43,846,905 = 31,391,201.40 : x - Step 2: Convert to fraction form
31,391,201.40/43,846,905 = 31,391,201.40/x - Step 3: Cross multiply
31,391,201.40x = 43,846,905 × 31,391,201.40 - Step 4: Simplify right side
31,391,201.40x = 1,376,407,025,621,667 - Step 5: Solve for x
x = 1,376,407,025,621,667/31,391,201.40 - Step 6: Final answer
x = 43,846,905
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.