Finding the Fourth Proportional to 1,912,537,203,633.40, 2,868,805,805,647 and 639,121,998,651.20
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Solution
The fourth proportional to 1,912,537,203,633.40, 2,868,805,805,647 and 639,121,998,651.20 is: 958,682,998,042.60
Step by Step Solution
- Step 1: Write the proportion equation
1,912,537,203,633.40 : 2,868,805,805,647 = 639,121,998,651.20 : x - Step 2: Convert to fraction form
1,912,537,203,633.40/2,868,805,805,647 = 639,121,998,651.20/x - Step 3: Cross multiply
1,912,537,203,633.40x = 2,868,805,805,647 × 639,121,998,651.20 - Step 4: Simplify right side
1,912,537,203,633.40x = 1,833,516,900,247,276,449,955,840 - Step 5: Solve for x
x = 1,833,516,900,247,276,449,955,840/1,912,537,203,633.40 - Step 6: Final answer
x = 958,682,998,042.60
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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.