Finding the Fourth Proportional to 324,127,538.75, 447,128,620.40 and 219,669,886.91
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Solution
The fourth proportional to 324,127,538.75, 447,128,620.40 and 219,669,886.91 is: 303,031,003.95
Step by Step Solution
- Step 1: Write the proportion equation
324,127,538.75 : 447,128,620.40 = 219,669,886.91 : x - Step 2: Convert to fraction form
324,127,538.75/447,128,620.40 = 219,669,886.91/x - Step 3: Cross multiply
324,127,538.75x = 447,128,620.40 × 219,669,886.91 - Step 4: Simplify right side
324,127,538.75x = 98,220,693,474,158,320 - Step 5: Solve for x
x = 98,220,693,474,158,320/324,127,538.75 - Step 6: Final answer
x = 303,031,003.95
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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.