Finding the Fourth Proportional to 190,187,998.20, 285,281,997.30 and 177,338,935.80
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Solution
The fourth proportional to 190,187,998.20, 285,281,997.30 and 177,338,935.80 is: 266,008,403.70
Step by Step Solution
- Step 1: Write the proportion equation
190,187,998.20 : 285,281,997.30 = 177,338,935.80 : x - Step 2: Convert to fraction form
190,187,998.20/285,281,997.30 = 177,338,935.80/x - Step 3: Cross multiply
190,187,998.20x = 285,281,997.30 × 177,338,935.80 - Step 4: Simplify right side
190,187,998.20x = 50,591,605,804,080,480 - Step 5: Solve for x
x = 50,591,605,804,080,480/190,187,998.20 - Step 6: Final answer
x = 266,008,403.70
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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.