Finding the Fourth Proportional to 2,189,531,997.83, 3,021,397,293.31 and 1,285,324,646.70
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Solution
The fourth proportional to 2,189,531,997.83, 3,021,397,293.31 and 1,285,324,646.70 is: 1,773,655,928.50
Step by Step Solution
- Step 1: Write the proportion equation
2,189,531,997.83 : 3,021,397,293.31 = 1,285,324,646.70 : x - Step 2: Convert to fraction form
2,189,531,997.83/3,021,397,293.31 = 1,285,324,646.70/x - Step 3: Cross multiply
2,189,531,997.83x = 3,021,397,293.31 × 1,285,324,646.70 - Step 4: Simplify right side
2,189,531,997.83x = 3,883,476,408,577,047,040 - Step 5: Solve for x
x = 3,883,476,408,577,047,040/2,189,531,997.83 - Step 6: Final answer
x = 1,773,655,928.50
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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.