Finding the Fourth Proportional to 209,124,317.08, 288,589,964.90 and 115,036,443.19
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Solution
The fourth proportional to 209,124,317.08, 288,589,964.90 and 115,036,443.19 is: 158,749,415.49
Step by Step Solution
- Step 1: Write the proportion equation
209,124,317.08 : 288,589,964.90 = 115,036,443.19 : x - Step 2: Convert to fraction form
209,124,317.08/288,589,964.90 = 115,036,443.19/x - Step 3: Cross multiply
209,124,317.08x = 288,589,964.90 × 115,036,443.19 - Step 4: Simplify right side
209,124,317.08x = 33,198,363,100,404,812 - Step 5: Solve for x
x = 33,198,363,100,404,812/209,124,317.08 - Step 6: Final answer
x = 158,749,415.49
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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.