Finding the Fourth Proportional to 13,255,354.35, 18,290,255.09 and 7,453,790.19
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Solution
The fourth proportional to 13,255,354.35, 18,290,255.09 and 7,453,790.19 is: 10,285,030.51
Step by Step Solution
- Step 1: Write the proportion equation
13,255,354.35 : 18,290,255.09 = 7,453,790.19 : x - Step 2: Convert to fraction form
13,255,354.35/18,290,255.09 = 7,453,790.19/x - Step 3: Cross multiply
13,255,354.35x = 18,290,255.09 × 7,453,790.19 - Step 4: Simplify right side
13,255,354.35x = 136,331,723,925,170.62 - Step 5: Solve for x
x = 136,331,723,925,170.62/13,255,354.35 - Step 6: Final answer
x = 10,285,030.51
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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.