Finding the Fourth Proportional to 209,673,190.16, 289,349,879.33 and 115,585,272.18
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Solution
The fourth proportional to 209,673,190.16, 289,349,879.33 and 115,585,272.18 is: 159,508,159.02
Step by Step Solution
- Step 1: Write the proportion equation
209,673,190.16 : 289,349,879.33 = 115,585,272.18 : x - Step 2: Convert to fraction form
209,673,190.16/289,349,879.33 = 115,585,272.18/x - Step 3: Cross multiply
209,673,190.16x = 289,349,879.33 × 115,585,272.18 - Step 4: Simplify right side
209,673,190.16x = 33,444,584,557,030,280 - Step 5: Solve for x
x = 33,444,584,557,030,280/209,673,190.16 - Step 6: Final answer
x = 159,508,159.02
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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.