Finding the Fourth Proportional to 3,927,199,320.93, 5,419,649,513.62 and 2,143,167,685.68
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Solution
The fourth proportional to 3,927,199,320.93, 5,419,649,513.62 and 2,143,167,685.68 is: 2,957,633,864.78
Step by Step Solution
- Step 1: Write the proportion equation
3,927,199,320.93 : 5,419,649,513.62 = 2,143,167,685.68 : x - Step 2: Convert to fraction form
3,927,199,320.93/5,419,649,513.62 = 2,143,167,685.68/x - Step 3: Cross multiply
3,927,199,320.93x = 5,419,649,513.62 × 2,143,167,685.68 - Step 4: Simplify right side
3,927,199,320.93x = 11,615,217,705,324,552,192 - Step 5: Solve for x
x = 11,615,217,705,324,552,192/3,927,199,320.93 - Step 6: Final answer
x = 2,957,633,864.78
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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.