Finding the Fourth Proportional to 1,397,533,091.70, 2,094,519,310.20 and 742,797,779.70
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Solution
The fourth proportional to 1,397,533,091.70, 2,094,519,310.20 and 742,797,779.70 is: 1,113,250,414.17
Step by Step Solution
- Step 1: Write the proportion equation
1,397,533,091.70 : 2,094,519,310.20 = 742,797,779.70 : x - Step 2: Convert to fraction form
1,397,533,091.70/2,094,519,310.20 = 742,797,779.70/x - Step 3: Cross multiply
1,397,533,091.70x = 2,094,519,310.20 × 742,797,779.70 - Step 4: Simplify right side
1,397,533,091.70x = 1,555,804,293,155,335,680 - Step 5: Solve for x
x = 1,555,804,293,155,335,680/1,397,533,091.70 - Step 6: Final answer
x = 1,113,250,414.17
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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.