Finding the Fourth Proportional to 1,331,921,464.96, 1,998,571,079.76 and 966,469,420.12
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Solution
The fourth proportional to 1,331,921,464.96, 1,998,571,079.76 and 966,469,420.12 is: 1,450,203,997.26
Step by Step Solution
- Step 1: Write the proportion equation
1,331,921,464.96 : 1,998,571,079.76 = 966,469,420.12 : x - Step 2: Convert to fraction form
1,331,921,464.96/1,998,571,079.76 = 966,469,420.12/x - Step 3: Cross multiply
1,331,921,464.96x = 1,998,571,079.76 × 966,469,420.12 - Step 4: Simplify right side
1,331,921,464.96x = 1,931,557,832,524,249,344 - Step 5: Solve for x
x = 1,931,557,832,524,249,344/1,331,921,464.96 - Step 6: Final answer
x = 1,450,203,997.26
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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.