Finding the Fourth Proportional to 122,805,656.92, 169,486,668.91 and 69,895,229.67
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Solution
The fourth proportional to 122,805,656.92, 169,486,668.91 and 69,895,229.67 is: 96,463,875.90
Step by Step Solution
- Step 1: Write the proportion equation
122,805,656.92 : 169,486,668.91 = 69,895,229.67 : x - Step 2: Convert to fraction form
122,805,656.92/169,486,668.91 = 69,895,229.67/x - Step 3: Cross multiply
122,805,656.92x = 169,486,668.91 × 69,895,229.67 - Step 4: Simplify right side
122,805,656.92x = 11,846,309,649,555,068 - Step 5: Solve for x
x = 11,846,309,649,555,068/122,805,656.92 - Step 6: Final answer
x = 96,463,875.90
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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.