Finding the Fourth Proportional to 122,642,096.92, 169,245,316.24 and 69,718,807.38
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Solution
The fourth proportional to 122,642,096.92, 169,245,316.24 and 69,718,807.38 is: 96,211,512.19
Step by Step Solution
- Step 1: Write the proportion equation
122,642,096.92 : 169,245,316.24 = 69,718,807.38 : x - Step 2: Convert to fraction form
122,642,096.92/169,245,316.24 = 69,718,807.38/x - Step 3: Cross multiply
122,642,096.92x = 169,245,316.24 × 69,718,807.38 - Step 4: Simplify right side
122,642,096.92x = 11,799,581,602,903,746 - Step 5: Solve for x
x = 11,799,581,602,903,746/122,642,096.92 - Step 6: Final answer
x = 96,211,512.19
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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.