Finding the Fourth Proportional to 1,731,987,131.46, 2,390,192,652 and 979,284,138.06
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Solution
The fourth proportional to 1,731,987,131.46, 2,390,192,652 and 979,284,138.06 is: 1,351,440,613.21
Step by Step Solution
- Step 1: Write the proportion equation
1,731,987,131.46 : 2,390,192,652 = 979,284,138.06 : x - Step 2: Convert to fraction form
1,731,987,131.46/2,390,192,652 = 979,284,138.06/x - Step 3: Cross multiply
1,731,987,131.46x = 2,390,192,652 × 979,284,138.06 - Step 4: Simplify right side
1,731,987,131.46x = 2,340,677,751,011,165,184 - Step 5: Solve for x
x = 2,340,677,751,011,165,184/1,731,987,131.46 - Step 6: Final answer
x = 1,351,440,613.21
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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.