Finding the Fourth Proportional to 3,539,663,642.80, 5,315,542,081.80 and 2,318,246,887.60
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Solution
The fourth proportional to 3,539,663,642.80, 5,315,542,081.80 and 2,318,246,887.60 is: 3,481,330,468.25
Step by Step Solution
- Step 1: Write the proportion equation
3,539,663,642.80 : 5,315,542,081.80 = 2,318,246,887.60 : x - Step 2: Convert to fraction form
3,539,663,642.80/5,315,542,081.80 = 2,318,246,887.60/x - Step 3: Cross multiply
3,539,663,642.80x = 5,315,542,081.80 × 2,318,246,887.60 - Step 4: Simplify right side
3,539,663,642.80x = 12,322,738,887,039,674,368 - Step 5: Solve for x
x = 12,322,738,887,039,674,368/3,539,663,642.80 - Step 6: Final answer
x = 3,481,330,468.25
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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.