Finding the Fourth Proportional to 3,542,943,998.80, 5,314,415,998.20 and 1,213,106,654.80
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Solution
The fourth proportional to 3,542,943,998.80, 5,314,415,998.20 and 1,213,106,654.80 is: 1,819,659,982.20
Step by Step Solution
- Step 1: Write the proportion equation
3,542,943,998.80 : 5,314,415,998.20 = 1,213,106,654.80 : x - Step 2: Convert to fraction form
3,542,943,998.80/5,314,415,998.20 = 1,213,106,654.80/x - Step 3: Cross multiply
3,542,943,998.80x = 5,314,415,998.20 × 1,213,106,654.80 - Step 4: Simplify right side
3,542,943,998.80x = 6,446,953,413,792,004,096 - Step 5: Solve for x
x = 6,446,953,413,792,004,096/3,542,943,998.80 - Step 6: Final answer
x = 1,819,659,982.20
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1.5x scale
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.