Finding the Fourth Proportional to 7,811,103.60, 11,717,764.54 and 2,420,177.76
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Solution
The fourth proportional to 7,811,103.60, 11,717,764.54 and 2,420,177.76 is: 3,630,610.29
Step by Step Solution
- Step 1: Write the proportion equation
7,811,103.60 : 11,717,764.54 = 2,420,177.76 : x - Step 2: Convert to fraction form
7,811,103.60/11,717,764.54 = 2,420,177.76/x - Step 3: Cross multiply
7,811,103.60x = 11,717,764.54 × 2,420,177.76 - Step 4: Simplify right side
7,811,103.60x = 28,359,073,136,624.62 - Step 5: Solve for x
x = 28,359,073,136,624.62/7,811,103.60 - Step 6: Final answer
x = 3,630,610.29
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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.