Finding the Fourth Proportional to 1,259,313,886.99, 1,737,859,201.77 and 694,798,738.30
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Solution
The fourth proportional to 1,259,313,886.99, 1,737,859,201.77 and 694,798,738.30 is: 958,825,590.04
Step by Step Solution
- Step 1: Write the proportion equation
1,259,313,886.99 : 1,737,859,201.77 = 694,798,738.30 : x - Step 2: Convert to fraction form
1,259,313,886.99/1,737,859,201.77 = 694,798,738.30/x - Step 3: Cross multiply
1,259,313,886.99x = 1,737,859,201.77 × 694,798,738.30 - Step 4: Simplify right side
1,259,313,886.99x = 1,207,462,380,732,840,960 - Step 5: Solve for x
x = 1,207,462,380,732,840,960/1,259,313,886.99 - Step 6: Final answer
x = 958,825,590.04
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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.