Finding the Fourth Proportional to 218,438,181.57, 301,444,679.03 and 117,966,609.08
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Solution
The fourth proportional to 218,438,181.57, 301,444,679.03 and 117,966,609.08 is: 162,793,914.31
Step by Step Solution
- Step 1: Write the proportion equation
218,438,181.57 : 301,444,679.03 = 117,966,609.08 : x - Step 2: Convert to fraction form
218,438,181.57/301,444,679.03 = 117,966,609.08/x - Step 3: Cross multiply
218,438,181.57x = 301,444,679.03 × 117,966,609.08 - Step 4: Simplify right side
218,438,181.57x = 35,560,406,611,252,960 - Step 5: Solve for x
x = 35,560,406,611,252,960/218,438,181.57 - Step 6: Final answer
x = 162,793,914.31
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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.