Finding the Fourth Proportional to 239,571,847.38, 330,612,361.62 and 135,149,595.78
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Solution
The fourth proportional to 239,571,847.38, 330,612,361.62 and 135,149,595.78 is: 186,508,254.29
Step by Step Solution
- Step 1: Write the proportion equation
239,571,847.38 : 330,612,361.62 = 135,149,595.78 : x - Step 2: Convert to fraction form
239,571,847.38/330,612,361.62 = 135,149,595.78/x - Step 3: Cross multiply
239,571,847.38x = 330,612,361.62 × 135,149,595.78 - Step 4: Simplify right side
239,571,847.38x = 44,682,127,032,814,184 - Step 5: Solve for x
x = 44,682,127,032,814,184/239,571,847.38 - Step 6: Final answer
x = 186,508,254.29
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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.