Finding the Fourth Proportional to 209,751,411.33, 289,458,184.64 and 121,697,838.99
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Solution
The fourth proportional to 209,751,411.33, 289,458,184.64 and 121,697,838.99 is: 167,943,735.51
Step by Step Solution
- Step 1: Write the proportion equation
209,751,411.33 : 289,458,184.64 = 121,697,838.99 : x - Step 2: Convert to fraction form
209,751,411.33/289,458,184.64 = 121,697,838.99/x - Step 3: Cross multiply
209,751,411.33x = 289,458,184.64 × 121,697,838.99 - Step 4: Simplify right side
209,751,411.33x = 35,226,435,548,047,920 - Step 5: Solve for x
x = 35,226,435,548,047,920/209,751,411.33 - Step 6: Final answer
x = 167,943,735.51
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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.