Finding the Fourth Proportional to 2,787,585,991.20, 4,181,378,986.80 and 2,555,133,697.80
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Solution
The fourth proportional to 2,787,585,991.20, 4,181,378,986.80 and 2,555,133,697.80 is: 3,832,700,546.70
Step by Step Solution
- Step 1: Write the proportion equation
2,787,585,991.20 : 4,181,378,986.80 = 2,555,133,697.80 : x - Step 2: Convert to fraction form
2,787,585,991.20/4,181,378,986.80 = 2,555,133,697.80/x - Step 3: Cross multiply
2,787,585,991.20x = 4,181,378,986.80 × 2,555,133,697.80 - Step 4: Simplify right side
2,787,585,991.20x = 10,683,982,352,445,503,488 - Step 5: Solve for x
x = 10,683,982,352,445,503,488/2,787,585,991.20 - Step 6: Final answer
x = 3,832,700,546.70
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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.