Finding the Fourth Proportional to 1,081,269,101.20, 1,621,903,651.80 and 622,104,077.20
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Solution
The fourth proportional to 1,081,269,101.20, 1,621,903,651.80 and 622,104,077.20 is: 933,156,115.80
Step by Step Solution
- Step 1: Write the proportion equation
1,081,269,101.20 : 1,621,903,651.80 = 622,104,077.20 : x - Step 2: Convert to fraction form
1,081,269,101.20/1,621,903,651.80 = 622,104,077.20/x - Step 3: Cross multiply
1,081,269,101.20x = 1,621,903,651.80 × 622,104,077.20 - Step 4: Simplify right side
1,081,269,101.20x = 1,008,992,874,610,349,184 - Step 5: Solve for x
x = 1,008,992,874,610,349,184/1,081,269,101.20 - Step 6: Final answer
x = 933,156,115.80
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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.