Finding the Fourth Proportional to 18,408,371.76, 27,612,559.80 and 5,628,876.84
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Solution
The fourth proportional to 18,408,371.76, 27,612,559.80 and 5,628,876.84 is: 8,443,315.92
Step by Step Solution
- Step 1: Write the proportion equation
18,408,371.76 : 27,612,559.80 = 5,628,876.84 : x - Step 2: Convert to fraction form
18,408,371.76/27,612,559.80 = 5,628,876.84/x - Step 3: Cross multiply
18,408,371.76x = 27,612,559.80 × 5,628,876.84 - Step 4: Simplify right side
18,408,371.76x = 155,427,698,351,335.03 - Step 5: Solve for x
x = 155,427,698,351,335.03/18,408,371.76 - Step 6: Final answer
x = 8,443,315.92
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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.