Finding the Fourth Proportional to 940,909,625.18, 1,411,525,229.81 and 387,909,755.70
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Solution
The fourth proportional to 940,909,625.18, 1,411,525,229.81 and 387,909,755.70 is: 581,930,923.44
Step by Step Solution
- Step 1: Write the proportion equation
940,909,625.18 : 1,411,525,229.81 = 387,909,755.70 : x - Step 2: Convert to fraction form
940,909,625.18/1,411,525,229.81 = 387,909,755.70/x - Step 3: Cross multiply
940,909,625.18x = 1,411,525,229.81 × 387,909,755.70 - Step 4: Simplify right side
940,909,625.18x = 547,544,407,052,750,720 - Step 5: Solve for x
x = 547,544,407,052,750,720/940,909,625.18 - Step 6: Final answer
x = 581,930,923.44
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1.5x scale
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.