Finding the Fourth Proportional to 2,156,481,013.12, 3,235,124,662.08 and 864,117,278.08
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Solution
The fourth proportional to 2,156,481,013.12, 3,235,124,662.08 and 864,117,278.08 is: 1,296,337,459.15
Step by Step Solution
- Step 1: Write the proportion equation
2,156,481,013.12 : 3,235,124,662.08 = 864,117,278.08 : x - Step 2: Convert to fraction form
2,156,481,013.12/3,235,124,662.08 = 864,117,278.08/x - Step 3: Cross multiply
2,156,481,013.12x = 3,235,124,662.08 × 864,117,278.08 - Step 4: Simplify right side
2,156,481,013.12x = 2,795,527,117,246,049,280 - Step 5: Solve for x
x = 2,795,527,117,246,049,280/2,156,481,013.12 - Step 6: Final answer
x = 1,296,337,459.15
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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.