Finding the Fourth Proportional to 7,815,215.80, 11,724,897.30 and 2,765,999.80
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Solution
The fourth proportional to 7,815,215.80, 11,724,897.30 and 2,765,999.80 is: 4,149,733.60
Step by Step Solution
- Step 1: Write the proportion equation
7,815,215.80 : 11,724,897.30 = 2,765,999.80 : x - Step 2: Convert to fraction form
7,815,215.80/11,724,897.30 = 2,765,999.80/x - Step 3: Cross multiply
7,815,215.80x = 11,724,897.30 × 2,765,999.80 - Step 4: Simplify right side
7,815,215.80x = 32,431,063,586,820.54 - Step 5: Solve for x
x = 32,431,063,586,820.54/7,815,215.80 - Step 6: Final answer
x = 4,149,733.60
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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.