Finding the Fourth Proportional to 183,167,999.20, 274,751,998.80 and 129,420,287.20
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Solution
The fourth proportional to 183,167,999.20, 274,751,998.80 and 129,420,287.20 is: 194,130,430.80
Step by Step Solution
- Step 1: Write the proportion equation
183,167,999.20 : 274,751,998.80 = 129,420,287.20 : x - Step 2: Convert to fraction form
183,167,999.20/274,751,998.80 = 129,420,287.20/x - Step 3: Cross multiply
183,167,999.20x = 274,751,998.80 × 129,420,287.20 - Step 4: Simplify right side
183,167,999.20x = 35,558,482,593,470,056 - Step 5: Solve for x
x = 35,558,482,593,470,056/183,167,999.20 - Step 6: Final answer
x = 194,130,430.80
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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.