Finding the Fourth Proportional to 209,673,190.03, 289,349,879.16 and 115,585,272.06
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Solution
The fourth proportional to 209,673,190.03, 289,349,879.16 and 115,585,272.06 is: 159,508,158.86
Step by Step Solution
- Step 1: Write the proportion equation
209,673,190.03 : 289,349,879.16 = 115,585,272.06 : x - Step 2: Convert to fraction form
209,673,190.03/289,349,879.16 = 115,585,272.06/x - Step 3: Cross multiply
209,673,190.03x = 289,349,879.16 × 115,585,272.06 - Step 4: Simplify right side
209,673,190.03x = 33,444,584,503,236,728 - Step 5: Solve for x
x = 33,444,584,503,236,728/209,673,190.03 - Step 6: Final answer
x = 159,508,158.86
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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.