Finding the Fourth Proportional to 3,989,113,870.70, 5,983,670,806.05 and 2,336,119,784.30
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Solution
The fourth proportional to 3,989,113,870.70, 5,983,670,806.05 and 2,336,119,784.30 is: 3,504,179,676.45
Step by Step Solution
- Step 1: Write the proportion equation
3,989,113,870.70 : 5,983,670,806.05 = 2,336,119,784.30 : x - Step 2: Convert to fraction form
3,989,113,870.70/5,983,670,806.05 = 2,336,119,784.30/x - Step 3: Cross multiply
3,989,113,870.70x = 5,983,670,806.05 × 2,336,119,784.30 - Step 4: Simplify right side
3,989,113,870.70x = 13,978,571,752,751,734,784 - Step 5: Solve for x
x = 13,978,571,752,751,734,784/3,989,113,870.70 - Step 6: Final answer
x = 3,504,179,676.45
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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.