Finding the Fourth Proportional to 3,881,507,218.92, 5,820,128,640.54 and 1,912,026,822.12
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Solution
The fourth proportional to 3,881,507,218.92, 5,820,128,640.54 and 1,912,026,822.12 is: 2,866,989,919.45
Step by Step Solution
- Step 1: Write the proportion equation
3,881,507,218.92 : 5,820,128,640.54 = 1,912,026,822.12 : x - Step 2: Convert to fraction form
3,881,507,218.92/5,820,128,640.54 = 1,912,026,822.12/x - Step 3: Cross multiply
3,881,507,218.92x = 5,820,128,640.54 × 1,912,026,822.12 - Step 4: Simplify right side
3,881,507,218.92x = 11,128,242,068,901,292,032 - Step 5: Solve for x
x = 11,128,242,068,901,292,032/3,881,507,218.92 - Step 6: Final answer
x = 2,866,989,919.45
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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.