Finding the Fourth Proportional to 214,844,651.21, 321,624,638.70 and 131,584,242.93
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Solution
The fourth proportional to 214,844,651.21, 321,624,638.70 and 131,584,242.93 is: 196,982,956.54
Step by Step Solution
- Step 1: Write the proportion equation
214,844,651.21 : 321,624,638.70 = 131,584,242.93 : x - Step 2: Convert to fraction form
214,844,651.21/321,624,638.70 = 131,584,242.93/x - Step 3: Cross multiply
214,844,651.21x = 321,624,638.70 × 131,584,242.93 - Step 4: Simplify right side
214,844,651.21x = 42,320,734,590,974,280 - Step 5: Solve for x
x = 42,320,734,590,974,280/214,844,651.21 - Step 6: Final answer
x = 196,982,956.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.