Finding the Fourth Proportional to 8,119,763.67, 11,205,273.60 and 4,448,819.31
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Solution
The fourth proportional to 8,119,763.67, 11,205,273.60 and 4,448,819.31 is: 6,139,370.50
Step by Step Solution
- Step 1: Write the proportion equation
8,119,763.67 : 11,205,273.60 = 4,448,819.31 : x - Step 2: Convert to fraction form
8,119,763.67/11,205,273.60 = 4,448,819.31/x - Step 3: Cross multiply
8,119,763.67x = 11,205,273.60 × 4,448,819.31 - Step 4: Simplify right side
8,119,763.67x = 49,850,237,565,513.21 - Step 5: Solve for x
x = 49,850,237,565,513.21/8,119,763.67 - Step 6: Final answer
x = 6,139,370.50
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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.