Finding the Fourth Proportional to 862,448,315.94, 1,190,178,675.97 and 491,204,890.98
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Solution
The fourth proportional to 862,448,315.94, 1,190,178,675.97 and 491,204,890.98 is: 677,862,749.54
Step by Step Solution
- Step 1: Write the proportion equation
862,448,315.94 : 1,190,178,675.97 = 491,204,890.98 : x - Step 2: Convert to fraction form
862,448,315.94/1,190,178,675.97 = 491,204,890.98/x - Step 3: Cross multiply
862,448,315.94x = 1,190,178,675.97 × 491,204,890.98 - Step 4: Simplify right side
862,448,315.94x = 584,621,586,775,336,576 - Step 5: Solve for x
x = 584,621,586,775,336,576/862,448,315.94 - Step 6: Final answer
x = 677,862,749.54
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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.