Finding the Fourth Proportional to 7,650,542.88, 10,557,749.16 and 4,212,775.76
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Solution
The fourth proportional to 7,650,542.88, 10,557,749.16 and 4,212,775.76 is: 5,813,630.54
Step by Step Solution
- Step 1: Write the proportion equation
7,650,542.88 : 10,557,749.16 = 4,212,775.76 : x - Step 2: Convert to fraction form
7,650,542.88/10,557,749.16 = 4,212,775.76/x - Step 3: Cross multiply
7,650,542.88x = 10,557,749.16 × 4,212,775.76 - Step 4: Simplify right side
7,650,542.88x = 44,477,429,741,408.36 - Step 5: Solve for x
x = 44,477,429,741,408.36/7,650,542.88 - Step 6: Final answer
x = 5,813,630.54
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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.