Finding the Fourth Proportional to 87,242,028.71, 120,394,732.19 and 48,083,905.49
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Solution
The fourth proportional to 87,242,028.71, 120,394,732.19 and 48,083,905.49 is: 66,356,193.33
Step by Step Solution
- Step 1: Write the proportion equation
87,242,028.71 : 120,394,732.19 = 48,083,905.49 : x - Step 2: Convert to fraction form
87,242,028.71/120,394,732.19 = 48,083,905.49/x - Step 3: Cross multiply
87,242,028.71x = 120,394,732.19 × 48,083,905.49 - Step 4: Simplify right side
87,242,028.71x = 5,789,048,923,275,428 - Step 5: Solve for x
x = 5,789,048,923,275,428/87,242,028.71 - Step 6: Final answer
x = 66,356,193.33
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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.