Finding the Fourth Proportional to 196,031,020.05, 270,322,291.85 and 129,928,565.97
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Solution
The fourth proportional to 196,031,020.05, 270,322,291.85 and 129,928,565.97 is: 179,168,519.96
Step by Step Solution
- Step 1: Write the proportion equation
196,031,020.05 : 270,322,291.85 = 129,928,565.97 : x - Step 2: Convert to fraction form
196,031,020.05/270,322,291.85 = 129,928,565.97/x - Step 3: Cross multiply
196,031,020.05x = 270,322,291.85 × 129,928,565.97 - Step 4: Simplify right side
196,031,020.05x = 35,122,587,729,144,680 - Step 5: Solve for x
x = 35,122,587,729,144,680/196,031,020.05 - Step 6: Final answer
x = 179,168,519.96
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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.