Finding the Fourth Proportional to 12,539,356.75, 18,809,268.50 and 3,564,142.03
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Solution
The fourth proportional to 12,539,356.75, 18,809,268.50 and 3,564,142.03 is: 5,346,279.38
Step by Step Solution
- Step 1: Write the proportion equation
12,539,356.75 : 18,809,268.50 = 3,564,142.03 : x - Step 2: Convert to fraction form
12,539,356.75/18,809,268.50 = 3,564,142.03/x - Step 3: Cross multiply
12,539,356.75x = 18,809,268.50 × 3,564,142.03 - Step 4: Simplify right side
12,539,356.75x = 67,038,904,414,405.05 - Step 5: Solve for x
x = 67,038,904,414,405.05/12,539,356.75 - Step 6: Final answer
x = 5,346,279.38
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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.