Finding the Fourth Proportional to 203,743,699.68, 281,190,682.80 and 120,130,756.32
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Solution
The fourth proportional to 203,743,699.68, 281,190,682.80 and 120,130,756.32 is: 165,794,816.96
Step by Step Solution
- Step 1: Write the proportion equation
203,743,699.68 : 281,190,682.80 = 120,130,756.32 : x - Step 2: Convert to fraction form
203,743,699.68/281,190,682.80 = 120,130,756.32/x - Step 3: Cross multiply
203,743,699.68x = 281,190,682.80 × 120,130,756.32 - Step 4: Simplify right side
203,743,699.68x = 33,779,649,394,901,216 - Step 5: Solve for x
x = 33,779,649,394,901,216/203,743,699.68 - Step 6: Final answer
x = 165,794,816.96
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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.