Finding the Fourth Proportional to 212,096,195.46, 292,688,160.57 and 122,791,905.09
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Solution
The fourth proportional to 212,096,195.46, 292,688,160.57 and 122,791,905.09 is: 169,450,172.15
Step by Step Solution
- Step 1: Write the proportion equation
212,096,195.46 : 292,688,160.57 = 122,791,905.09 : x - Step 2: Convert to fraction form
212,096,195.46/292,688,160.57 = 122,791,905.09/x - Step 3: Cross multiply
212,096,195.46x = 292,688,160.57 × 122,791,905.09 - Step 4: Simplify right side
212,096,195.46x = 35,939,736,833,678,120 - Step 5: Solve for x
x = 35,939,736,833,678,120/212,096,195.46 - Step 6: Final answer
x = 169,450,172.15
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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.