Finding the Fourth Proportional to 1,879,494,680.80, 2,819,242,021.20 and 1,395,765,272.80
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Solution
The fourth proportional to 1,879,494,680.80, 2,819,242,021.20 and 1,395,765,272.80 is: 2,093,647,909.20
Step by Step Solution
- Step 1: Write the proportion equation
1,879,494,680.80 : 2,819,242,021.20 = 1,395,765,272.80 : x - Step 2: Convert to fraction form
1,879,494,680.80/2,819,242,021.20 = 1,395,765,272.80/x - Step 3: Cross multiply
1,879,494,680.80x = 2,819,242,021.20 × 1,395,765,272.80 - Step 4: Simplify right side
1,879,494,680.80x = 3,935,000,108,809,440,768 - Step 5: Solve for x
x = 3,935,000,108,809,440,768/1,879,494,680.80 - Step 6: Final answer
x = 2,093,647,909.20
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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.