Finding the Fourth Proportional to 324,127,542.87, 447,128,626.10 and 219,669,891.03
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Solution
The fourth proportional to 324,127,542.87, 447,128,626.10 and 219,669,891.03 is: 303,031,009.65
Step by Step Solution
- Step 1: Write the proportion equation
324,127,542.87 : 447,128,626.10 = 219,669,891.03 : x - Step 2: Convert to fraction form
324,127,542.87/447,128,626.10 = 219,669,891.03/x - Step 3: Cross multiply
324,127,542.87x = 447,128,626.10 × 219,669,891.03 - Step 4: Simplify right side
324,127,542.87x = 98,220,696,570,682,272 - Step 5: Solve for x
x = 98,220,696,570,682,272/324,127,542.87 - Step 6: Final answer
x = 303,031,009.65
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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.