Finding the Fourth Proportional to 1,528,003,053.20, 2,292,004,579.80 and 437,486,121.20
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Solution
The fourth proportional to 1,528,003,053.20, 2,292,004,579.80 and 437,486,121.20 is: 656,229,181.80
Step by Step Solution
- Step 1: Write the proportion equation
1,528,003,053.20 : 2,292,004,579.80 = 437,486,121.20 : x - Step 2: Convert to fraction form
1,528,003,053.20/2,292,004,579.80 = 437,486,121.20/x - Step 3: Cross multiply
1,528,003,053.20x = 2,292,004,579.80 × 437,486,121.20 - Step 4: Simplify right side
1,528,003,053.20x = 1,002,720,193,389,337,984 - Step 5: Solve for x
x = 1,002,720,193,389,337,984/1,528,003,053.20 - Step 6: Final answer
x = 656,229,181.80
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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.