Finding the Fourth Proportional to 994,346,698.26, 1,371,958,479.63 and 641,847,197.10
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Solution
The fourth proportional to 994,346,698.26, 1,371,958,479.63 and 641,847,197.10 is: 885,594,236.12
Step by Step Solution
- Step 1: Write the proportion equation
994,346,698.26 : 1,371,958,479.63 = 641,847,197.10 : x - Step 2: Convert to fraction form
994,346,698.26/1,371,958,479.63 = 641,847,197.10/x - Step 3: Cross multiply
994,346,698.26x = 1,371,958,479.63 × 641,847,197.10 - Step 4: Simplify right side
994,346,698.26x = 880,587,704,688,093,056 - Step 5: Solve for x
x = 880,587,704,688,093,056/994,346,698.26 - Step 6: Final answer
x = 885,594,236.12
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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.