Finding the Fourth Proportional to 2,555,291,181.20, 3,832,936,771.80 and 919,303,206.80
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Solution
The fourth proportional to 2,555,291,181.20, 3,832,936,771.80 and 919,303,206.80 is: 1,378,954,810.20
Step by Step Solution
- Step 1: Write the proportion equation
2,555,291,181.20 : 3,832,936,771.80 = 919,303,206.80 : x - Step 2: Convert to fraction form
2,555,291,181.20/3,832,936,771.80 = 919,303,206.80/x - Step 3: Cross multiply
2,555,291,181.20x = 3,832,936,771.80 × 919,303,206.80 - Step 4: Simplify right side
2,555,291,181.20x = 3,523,631,065,777,379,840 - Step 5: Solve for x
x = 3,523,631,065,777,379,840/2,555,291,181.20 - Step 6: Final answer
x = 1,378,954,810.20
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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.