Finding the Fourth Proportional to 129,011,198,775.79, 193,517,410,280.37 and 39,474,049,358.42
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Solution
The fourth proportional to 129,011,198,775.79, 193,517,410,280.37 and 39,474,049,358.42 is: 59,211,261,329.31
Step by Step Solution
- Step 1: Write the proportion equation
129,011,198,775.79 : 193,517,410,280.37 = 39,474,049,358.42 : x - Step 2: Convert to fraction form
129,011,198,775.79/193,517,410,280.37 = 39,474,049,358.42/x - Step 3: Cross multiply
129,011,198,775.79x = 193,517,410,280.37 × 39,474,049,358.42 - Step 4: Simplify right side
129,011,198,775.79x = 7,638,915,805,120,938,639,360 - Step 5: Solve for x
x = 7,638,915,805,120,938,639,360/129,011,198,775.79 - Step 6: Final answer
x = 59,211,261,329.31
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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.