Finding the Fourth Proportional to 7,478,771.91, 11,219,317.74 and 3,160,840.31
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Solution
The fourth proportional to 7,478,771.91, 11,219,317.74 and 3,160,840.31 is: 4,741,750.68
Step by Step Solution
- Step 1: Write the proportion equation
7,478,771.91 : 11,219,317.74 = 3,160,840.31 : x - Step 2: Convert to fraction form
7,478,771.91/11,219,317.74 = 3,160,840.31/x - Step 3: Cross multiply
7,478,771.91x = 11,219,317.74 × 3,160,840.31 - Step 4: Simplify right side
7,478,771.91x = 35,462,471,763,290.10 - Step 5: Solve for x
x = 35,462,471,763,290.10/7,478,771.91 - Step 6: Final answer
x = 4,741,750.68
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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.