Finding the Fourth Proportional to 216,586,419.35, 324,910,507.10 and 71,031,373.07
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Solution
The fourth proportional to 216,586,419.35, 324,910,507.10 and 71,031,373.07 is: 106,557,186.33
Step by Step Solution
- Step 1: Write the proportion equation
216,586,419.35 : 324,910,507.10 = 71,031,373.07 : x - Step 2: Convert to fraction form
216,586,419.35/324,910,507.10 = 71,031,373.07/x - Step 3: Cross multiply
216,586,419.35x = 324,910,507.10 × 71,031,373.07 - Step 4: Simplify right side
216,586,419.35x = 23,078,839,442,203,276 - Step 5: Solve for x
x = 23,078,839,442,203,276/216,586,419.35 - Step 6: Final answer
x = 106,557,186.33
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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.