Finding the Fourth Proportional to 2,241,394,191.20, 3,362,091,286.80 and 787,371,615.20
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Solution
The fourth proportional to 2,241,394,191.20, 3,362,091,286.80 and 787,371,615.20 is: 1,181,057,422.80
Step by Step Solution
- Step 1: Write the proportion equation
2,241,394,191.20 : 3,362,091,286.80 = 787,371,615.20 : x - Step 2: Convert to fraction form
2,241,394,191.20/3,362,091,286.80 = 787,371,615.20/x - Step 3: Cross multiply
2,241,394,191.20x = 3,362,091,286.80 × 787,371,615.20 - Step 4: Simplify right side
2,241,394,191.20x = 2,647,215,246,937,562,624 - Step 5: Solve for x
x = 2,647,215,246,937,562,624/2,241,394,191.20 - Step 6: Final answer
x = 1,181,057,422.80
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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.