Finding the Fourth Proportional to 7,101,974.20, 10,652,961.30 and 2,615,999.80
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Solution
The fourth proportional to 7,101,974.20, 10,652,961.30 and 2,615,999.80 is: 3,923,999.70
Step by Step Solution
- Step 1: Write the proportion equation
7,101,974.20 : 10,652,961.30 = 2,615,999.80 : x - Step 2: Convert to fraction form
7,101,974.20/10,652,961.30 = 2,615,999.80/x - Step 3: Cross multiply
7,101,974.20x = 10,652,961.30 × 2,615,999.80 - Step 4: Simplify right side
7,101,974.20x = 27,868,144,630,207.74 - Step 5: Solve for x
x = 27,868,144,630,207.74/7,101,974.20 - Step 6: Final answer
x = 3,923,999.70
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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.