Finding the Fourth Proportional to 218,318,402.12, 301,305,813.99 and 124,255,420.34
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Solution
The fourth proportional to 218,318,402.12, 301,305,813.99 and 124,255,420.34 is: 171,487,516.42
Step by Step Solution
- Step 1: Write the proportion equation
218,318,402.12 : 301,305,813.99 = 124,255,420.34 : x - Step 2: Convert to fraction form
218,318,402.12/301,305,813.99 = 124,255,420.34/x - Step 3: Cross multiply
218,318,402.12x = 301,305,813.99 × 124,255,420.34 - Step 4: Simplify right side
218,318,402.12x = 37,438,880,568,213,304 - Step 5: Solve for x
x = 37,438,880,568,213,304/218,318,402.12 - Step 6: Final answer
x = 171,487,516.42
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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.