Finding the Fourth Proportional to 122,208,913.44, 168,643,168.85 and 69,289,182.09
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Solution
The fourth proportional to 122,208,913.44, 168,643,168.85 and 69,289,182.09 is: 95,616,161.75
Step by Step Solution
- Step 1: Write the proportion equation
122,208,913.44 : 168,643,168.85 = 69,289,182.09 : x - Step 2: Convert to fraction form
122,208,913.44/168,643,168.85 = 69,289,182.09/x - Step 3: Cross multiply
122,208,913.44x = 168,643,168.85 × 69,289,182.09 - Step 4: Simplify right side
122,208,913.44x = 11,685,147,234,335,820 - Step 5: Solve for x
x = 11,685,147,234,335,820/122,208,913.44 - Step 6: Final answer
x = 95,616,161.75
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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.