Finding the Fourth Proportional to 7,239,163.60, 9,985,454.74 and 4,447,064.44
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Solution
The fourth proportional to 7,239,163.60, 9,985,454.74 and 4,447,064.44 is: 6,134,128.63
Step by Step Solution
- Step 1: Write the proportion equation
7,239,163.60 : 9,985,454.74 = 4,447,064.44 : x - Step 2: Convert to fraction form
7,239,163.60/9,985,454.74 = 4,447,064.44/x - Step 3: Cross multiply
7,239,163.60x = 9,985,454.74 × 4,447,064.44 - Step 4: Simplify right side
7,239,163.60x = 44,405,960,691,483.45 - Step 5: Solve for x
x = 44,405,960,691,483.45/7,239,163.60 - Step 6: Final answer
x = 6,134,128.63
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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.