Finding the Fourth Proportional to 7,630,811.80, 11,446,217.70 and 6,603,359.20
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Solution
The fourth proportional to 7,630,811.80, 11,446,217.70 and 6,603,359.20 is: 9,905,038.80
Step by Step Solution
- Step 1: Write the proportion equation
7,630,811.80 : 11,446,217.70 = 6,603,359.20 : x - Step 2: Convert to fraction form
7,630,811.80/11,446,217.70 = 6,603,359.20/x - Step 3: Cross multiply
7,630,811.80x = 11,446,217.70 × 6,603,359.20 - Step 4: Simplify right side
7,630,811.80x = 75,583,486,954,497.84 - Step 5: Solve for x
x = 75,583,486,954,497.84/7,630,811.80 - Step 6: Final answer
x = 9,905,038.80
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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.