Finding the Fourth Proportional to 212,096,246.13, 292,688,231.49 and 122,791,956.57
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Solution
The fourth proportional to 212,096,246.13, 292,688,231.49 and 122,791,956.57 is: 169,450,243.77
Step by Step Solution
- Step 1: Write the proportion equation
212,096,246.13 : 292,688,231.49 = 122,791,956.57 : x - Step 2: Convert to fraction form
212,096,246.13/292,688,231.49 = 122,791,956.57/x - Step 3: Cross multiply
212,096,246.13x = 292,688,231.49 × 122,791,956.57 - Step 4: Simplify right side
212,096,246.13x = 35,939,760,609,670,184 - Step 5: Solve for x
x = 35,939,760,609,670,184/212,096,246.13 - Step 6: Final answer
x = 169,450,243.77
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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.