Finding the Fourth Proportional to 1,925,390,847.49, 2,887,245,261.50 and 681,407,868.94
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Solution
The fourth proportional to 1,925,390,847.49, 2,887,245,261.50 and 681,407,868.94 is: 1,021,814,164.80
Step by Step Solution
- Step 1: Write the proportion equation
1,925,390,847.49 : 2,887,245,261.50 = 681,407,868.94 : x - Step 2: Convert to fraction form
1,925,390,847.49/2,887,245,261.50 = 681,407,868.94/x - Step 3: Cross multiply
1,925,390,847.49x = 2,887,245,261.50 × 681,407,868.94 - Step 4: Simplify right side
1,925,390,847.49x = 1,967,391,640,735,202,816 - Step 5: Solve for x
x = 1,967,391,640,735,202,816/1,925,390,847.49 - Step 6: Final answer
x = 1,021,814,164.80
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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.