Finding the Fourth Proportional to 1,801,586,771.21, 2,702,787,643.51 and 972,522,618.75
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Solution
The fourth proportional to 1,801,586,771.21, 2,702,787,643.51 and 972,522,618.75 is: 1,459,003,895.34
Step by Step Solution
- Step 1: Write the proportion equation
1,801,586,771.21 : 2,702,787,643.51 = 972,522,618.75 : x - Step 2: Convert to fraction form
1,801,586,771.21/2,702,787,643.51 = 972,522,618.75/x - Step 3: Cross multiply
1,801,586,771.21x = 2,702,787,643.51 × 972,522,618.75 - Step 4: Simplify right side
1,801,586,771.21x = 2,628,522,116,991,486,976 - Step 5: Solve for x
x = 2,628,522,116,991,486,976/1,801,586,771.21 - Step 6: Final answer
x = 1,459,003,895.34
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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.