Finding the Fourth Proportional to 13,121,191.22, 18,107,251.70 and 7,319,972.97
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Solution
The fourth proportional to 13,121,191.22, 18,107,251.70 and 7,319,972.97 is: 10,101,567.06
Step by Step Solution
- Step 1: Write the proportion equation
13,121,191.22 : 18,107,251.70 = 7,319,972.97 : x - Step 2: Convert to fraction form
13,121,191.22/18,107,251.70 = 7,319,972.97/x - Step 3: Cross multiply
13,121,191.22x = 18,107,251.70 × 7,319,972.97 - Step 4: Simplify right side
13,121,191.22x = 132,544,592,968,386.69 - Step 5: Solve for x
x = 132,544,592,968,386.69/13,121,191.22 - Step 6: Final answer
x = 10,101,567.06
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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.