Finding the Fourth Proportional to 2,154,102,402.80, 3,231,153,604.20 and 843,568,896.80
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Solution
The fourth proportional to 2,154,102,402.80, 3,231,153,604.20 and 843,568,896.80 is: 1,265,353,345.20
Step by Step Solution
- Step 1: Write the proportion equation
2,154,102,402.80 : 3,231,153,604.20 = 843,568,896.80 : x - Step 2: Convert to fraction form
2,154,102,402.80/3,231,153,604.20 = 843,568,896.80/x - Step 3: Cross multiply
2,154,102,402.80x = 3,231,153,604.20 × 843,568,896.80 - Step 4: Simplify right side
2,154,102,402.80x = 2,725,700,681,286,337,536 - Step 5: Solve for x
x = 2,725,700,681,286,337,536/2,154,102,402.80 - Step 6: Final answer
x = 1,265,353,345.20
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1.5x scale
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.