Finding the Fourth Proportional to 11,180,873.20, 16,763,015.40 and 4,785,890.80
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Solution
The fourth proportional to 11,180,873.20, 16,763,015.40 and 4,785,890.80 is: 7,175,285.84
Step by Step Solution
- Step 1: Write the proportion equation
11,180,873.20 : 16,763,015.40 = 4,785,890.80 : x - Step 2: Convert to fraction form
11,180,873.20/16,763,015.40 = 4,785,890.80/x - Step 3: Cross multiply
11,180,873.20x = 16,763,015.40 × 4,785,890.80 - Step 4: Simplify right side
11,180,873.20x = 80,225,961,183,118.31 - Step 5: Solve for x
x = 80,225,961,183,118.31/11,180,873.20 - Step 6: Final answer
x = 7,175,285.84
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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.