Finding the Fourth Proportional to 1,441,596,217.56, 1,989,480,024.26 and 806,478,821.82
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Solution
The fourth proportional to 1,441,596,217.56, 1,989,480,024.26 and 806,478,821.82 is: 1,112,983,987.09
Step by Step Solution
- Step 1: Write the proportion equation
1,441,596,217.56 : 1,989,480,024.26 = 806,478,821.82 : x - Step 2: Convert to fraction form
1,441,596,217.56/1,989,480,024.26 = 806,478,821.82/x - Step 3: Cross multiply
1,441,596,217.56x = 1,989,480,024.26 × 806,478,821.82 - Step 4: Simplify right side
1,441,596,217.56x = 1,604,473,505,995,597,568 - Step 5: Solve for x
x = 1,604,473,505,995,597,568/1,441,596,217.56 - Step 6: Final answer
x = 1,112,983,987.09
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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.