Finding the Fourth Proportional to 1,218,951,475.08, 1,682,096,735.30 and 690,319,244.04
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Solution
The fourth proportional to 1,218,951,475.08, 1,682,096,735.30 and 690,319,244.04 is: 952,608,672.66
Step by Step Solution
- Step 1: Write the proportion equation
1,218,951,475.08 : 1,682,096,735.30 = 690,319,244.04 : x - Step 2: Convert to fraction form
1,218,951,475.08/1,682,096,735.30 = 690,319,244.04/x - Step 3: Cross multiply
1,218,951,475.08x = 1,682,096,735.30 × 690,319,244.04 - Step 4: Simplify right side
1,218,951,475.08x = 1,161,183,746,714,447,872 - Step 5: Solve for x
x = 1,161,183,746,714,447,872/1,218,951,475.08 - Step 6: Final answer
x = 952,608,672.66
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1.5x scale
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.