Finding the Fourth Proportional to 3,928,445,165.36, 5,420,445,049.20 and 2,257,371,456.08
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Solution
The fourth proportional to 3,928,445,165.36, 5,420,445,049.20 and 2,257,371,456.08 is: 3,114,707,579.78
Step by Step Solution
- Step 1: Write the proportion equation
3,928,445,165.36 : 5,420,445,049.20 = 2,257,371,456.08 : x - Step 2: Convert to fraction form
3,928,445,165.36/5,420,445,049.20 = 2,257,371,456.08/x - Step 3: Cross multiply
3,928,445,165.36x = 5,420,445,049.20 × 2,257,371,456.08 - Step 4: Simplify right side
3,928,445,165.36x = 12,235,957,933,314,230,272 - Step 5: Solve for x
x = 12,235,957,933,314,230,272/3,928,445,165.36 - Step 6: Final answer
x = 3,114,707,579.78
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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.