Finding the Fourth Proportional to 3,979,552,420.40, 5,966,183,360.09 and 1,986,571,629.68
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Solution
The fourth proportional to 3,979,552,420.40, 5,966,183,360.09 and 1,986,571,629.68 is: 2,978,287,342.03
Step by Step Solution
- Step 1: Write the proportion equation
3,979,552,420.40 : 5,966,183,360.09 = 1,986,571,629.68 : x - Step 2: Convert to fraction form
3,979,552,420.40/5,966,183,360.09 = 1,986,571,629.68/x - Step 3: Cross multiply
3,979,552,420.40x = 5,966,183,360.09 × 1,986,571,629.68 - Step 4: Simplify right side
3,979,552,420.40x = 11,852,250,600,598,824,960 - Step 5: Solve for x
x = 11,852,250,600,598,824,960/3,979,552,420.40 - Step 6: Final answer
x = 2,978,287,342.03
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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.