Finding the Fourth Proportional to 28,655,974.92, 39,544,900.74 and 15,603,229.80
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Solution
The fourth proportional to 28,655,974.92, 39,544,900.74 and 15,603,229.80 is: 21,532,269.46
Step by Step Solution
- Step 1: Write the proportion equation
28,655,974.92 : 39,544,900.74 = 15,603,229.80 : x - Step 2: Convert to fraction form
28,655,974.92/39,544,900.74 = 15,603,229.80/x - Step 3: Cross multiply
28,655,974.92x = 39,544,900.74 × 15,603,229.80 - Step 4: Simplify right side
28,655,974.92x = 617,028,173,664,410.12 - Step 5: Solve for x
x = 617,028,173,664,410.12/28,655,974.92 - Step 6: Final answer
x = 21,532,269.46
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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.