Finding the Fourth Proportional to 8,319,675.12, 11,480,936.97 and 4,648,621.87
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Solution
The fourth proportional to 8,319,675.12, 11,480,936.97 and 4,648,621.87 is: 6,414,978.22
Step by Step Solution
- Step 1: Write the proportion equation
8,319,675.12 : 11,480,936.97 = 4,648,621.87 : x - Step 2: Convert to fraction form
8,319,675.12/11,480,936.97 = 4,648,621.87/x - Step 3: Cross multiply
8,319,675.12x = 11,480,936.97 × 4,648,621.87 - Step 4: Simplify right side
8,319,675.12x = 53,370,534,686,833.54 - Step 5: Solve for x
x = 53,370,534,686,833.54/8,319,675.12 - Step 6: Final answer
x = 6,414,978.22
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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.