Finding the Fourth Proportional to 7,859,964.24, 11,789,946.36 and 2,180,188.55
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Solution
The fourth proportional to 7,859,964.24, 11,789,946.36 and 2,180,188.55 is: 3,270,282.82
Step by Step Solution
- Step 1: Write the proportion equation
7,859,964.24 : 11,789,946.36 = 2,180,188.55 : x - Step 2: Convert to fraction form
7,859,964.24/11,789,946.36 = 2,180,188.55/x - Step 3: Cross multiply
7,859,964.24x = 11,789,946.36 × 2,180,188.55 - Step 4: Simplify right side
7,859,964.24x = 25,704,306,000,236.45 - Step 5: Solve for x
x = 25,704,306,000,236.45/7,859,964.24 - Step 6: Final answer
x = 3,270,282.82
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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.