Finding the Fourth Proportional to 809,137,450.17, 1,115,994,399.33 and 696,297,134.10
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Solution
The fourth proportional to 809,137,450.17, 1,115,994,399.33 and 696,297,134.10 is: 960,360,568.85
Step by Step Solution
- Step 1: Write the proportion equation
809,137,450.17 : 1,115,994,399.33 = 696,297,134.10 : x - Step 2: Convert to fraction form
809,137,450.17/1,115,994,399.33 = 696,297,134.10/x - Step 3: Cross multiply
809,137,450.17x = 1,115,994,399.33 × 696,297,134.10 - Step 4: Simplify right side
809,137,450.17x = 777,063,701,925,129,984 - Step 5: Solve for x
x = 777,063,701,925,129,984/809,137,450.17 - Step 6: Final answer
x = 960,360,568.85
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Double scale
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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.