Finding the Fourth Proportional to 12,755,645.70, 19,122,138.47 and 4,972,765.97
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Solution
The fourth proportional to 12,755,645.70, 19,122,138.47 and 4,972,765.97 is: 7,454,731.94
Step by Step Solution
- Step 1: Write the proportion equation
12,755,645.70 : 19,122,138.47 = 4,972,765.97 : x - Step 2: Convert to fraction form
12,755,645.70/19,122,138.47 = 4,972,765.97/x - Step 3: Cross multiply
12,755,645.70x = 19,122,138.47 × 4,972,765.97 - Step 4: Simplify right side
12,755,645.70x = 95,089,919,374,065.09 - Step 5: Solve for x
x = 95,089,919,374,065.09/12,755,645.70 - Step 6: Final answer
x = 7,454,731.94
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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.