Finding the Fourth Proportional to 88,409,785.57, 121,121,838.42 and 85,096,207.51
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Solution
The fourth proportional to 88,409,785.57, 121,121,838.42 and 85,096,207.51 is: 116,582,220.28
Step by Step Solution
- Step 1: Write the proportion equation
88,409,785.57 : 121,121,838.42 = 85,096,207.51 : x - Step 2: Convert to fraction form
88,409,785.57/121,121,838.42 = 85,096,207.51/x - Step 3: Cross multiply
88,409,785.57x = 121,121,838.42 × 85,096,207.51 - Step 4: Simplify right side
88,409,785.57x = 10,307,009,095,559,094 - Step 5: Solve for x
x = 10,307,009,095,559,094/88,409,785.57 - Step 6: Final answer
x = 116,582,220.28
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.