Finding the Fourth Proportional to 100,239,135.67, 138,327,538.19 and 55,584,861.01
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Solution
The fourth proportional to 100,239,135.67, 138,327,538.19 and 55,584,861.01 is: 76,705,739.05
Step by Step Solution
- Step 1: Write the proportion equation
100,239,135.67 : 138,327,538.19 = 55,584,861.01 : x - Step 2: Convert to fraction form
100,239,135.67/138,327,538.19 = 55,584,861.01/x - Step 3: Cross multiply
100,239,135.67x = 138,327,538.19 × 55,584,861.01 - Step 4: Simplify right side
100,239,135.67x = 7,688,916,983,328,524 - Step 5: Solve for x
x = 7,688,916,983,328,524/100,239,135.67 - Step 6: Final answer
x = 76,705,739.05
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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.