Finding the Fourth Proportional to 13,322,980.75, 19,985,184.64 and 4,225,768.49
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Solution
The fourth proportional to 13,322,980.75, 19,985,184.64 and 4,225,768.49 is: 6,338,879.05
Step by Step Solution
- Step 1: Write the proportion equation
13,322,980.75 : 19,985,184.64 = 4,225,768.49 : x - Step 2: Convert to fraction form
13,322,980.75/19,985,184.64 = 4,225,768.49/x - Step 3: Cross multiply
13,322,980.75x = 19,985,184.64 × 4,225,768.49 - Step 4: Simplify right side
13,322,980.75x = 84,452,763,518,544 - Step 5: Solve for x
x = 84,452,763,518,544/13,322,980.75 - Step 6: Final answer
x = 6,338,879.05
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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.