Finding the Fourth Proportional to 158,101,620.44, 218,187,054.38 and 87,537,231.99
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Solution
The fourth proportional to 158,101,620.44, 218,187,054.38 and 87,537,231.99 is: 120,805,155.21
Step by Step Solution
- Step 1: Write the proportion equation
158,101,620.44 : 218,187,054.38 = 87,537,231.99 : x - Step 2: Convert to fraction form
158,101,620.44/218,187,054.38 = 87,537,231.99/x - Step 3: Cross multiply
158,101,620.44x = 218,187,054.38 × 87,537,231.99 - Step 4: Simplify right side
158,101,620.44x = 19,099,490,796,476,804 - Step 5: Solve for x
x = 19,099,490,796,476,804/158,101,620.44 - Step 6: Final answer
x = 120,805,155.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.