Finding the Fourth Proportional to 236,430,996.80, 354,646,495.20 and 193,915,716.80
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Solution
The fourth proportional to 236,430,996.80, 354,646,495.20 and 193,915,716.80 is: 290,873,575.20
Step by Step Solution
- Step 1: Write the proportion equation
236,430,996.80 : 354,646,495.20 = 193,915,716.80 : x - Step 2: Convert to fraction form
236,430,996.80/354,646,495.20 = 193,915,716.80/x - Step 3: Cross multiply
236,430,996.80x = 354,646,495.20 × 193,915,716.80 - Step 4: Simplify right side
236,430,996.80x = 68,771,529,327,315,760 - Step 5: Solve for x
x = 68,771,529,327,315,760/236,430,996.80 - Step 6: Final answer
x = 290,873,575.20
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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.