Finding the Fourth Proportional to 3,847,213,476.54, 5,774,551,912.44 and 1,856,656,374.75
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Solution
The fourth proportional to 3,847,213,476.54, 5,774,551,912.44 and 1,856,656,374.75 is: 2,786,785,470.82
Step by Step Solution
- Step 1: Write the proportion equation
3,847,213,476.54 : 5,774,551,912.44 = 1,856,656,374.75 : x - Step 2: Convert to fraction form
3,847,213,476.54/5,774,551,912.44 = 1,856,656,374.75/x - Step 3: Cross multiply
3,847,213,476.54x = 5,774,551,912.44 × 1,856,656,374.75 - Step 4: Simplify right side
3,847,213,476.54x = 10,721,358,619,556,528,128 - Step 5: Solve for x
x = 10,721,358,619,556,528,128/3,847,213,476.54 - Step 6: Final answer
x = 2,786,785,470.82
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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.