Finding the Fourth Proportional to 7,480,722.68, 11,223,083.07 and 2,688,453.46
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Solution
The fourth proportional to 7,480,722.68, 11,223,083.07 and 2,688,453.46 is: 4,033,398.62
Step by Step Solution
- Step 1: Write the proportion equation
7,480,722.68 : 11,223,083.07 = 2,688,453.46 : x - Step 2: Convert to fraction form
7,480,722.68/11,223,083.07 = 2,688,453.46/x - Step 3: Cross multiply
7,480,722.68x = 11,223,083.07 × 2,688,453.46 - Step 4: Simplify right side
7,480,722.68x = 30,172,736,511,408.92 - Step 5: Solve for x
x = 30,172,736,511,408.92/7,480,722.68 - Step 6: Final answer
x = 4,033,398.62
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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.