Finding the Fourth Proportional to 12,688,285.44, 19,033,161.91 and 3,589,620.84
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Solution
The fourth proportional to 12,688,285.44, 19,033,161.91 and 3,589,620.84 is: 5,384,638.84
Step by Step Solution
- Step 1: Write the proportion equation
12,688,285.44 : 19,033,161.91 = 3,589,620.84 : x - Step 2: Convert to fraction form
12,688,285.44/19,033,161.91 = 3,589,620.84/x - Step 3: Cross multiply
12,688,285.44x = 19,033,161.91 × 3,589,620.84 - Step 4: Simplify right side
12,688,285.44x = 68,321,834,562,881.80 - Step 5: Solve for x
x = 68,321,834,562,881.80/12,688,285.44 - Step 6: Final answer
x = 5,384,638.84
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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.