Finding the Fourth Proportional to 7,480,808.70, 11,193,219.45 and 4,961,384.70
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Solution
The fourth proportional to 7,480,808.70, 11,193,219.45 and 4,961,384.70 is: 7,423,511.27
Step by Step Solution
- Step 1: Write the proportion equation
7,480,808.70 : 11,193,219.45 = 4,961,384.70 : x - Step 2: Convert to fraction form
7,480,808.70/11,193,219.45 = 4,961,384.70/x - Step 3: Cross multiply
7,480,808.70x = 11,193,219.45 × 4,961,384.70 - Step 4: Simplify right side
7,480,808.70x = 55,533,867,722,972.41 - Step 5: Solve for x
x = 55,533,867,722,972.41/7,480,808.70 - Step 6: Final answer
x = 7,423,511.27
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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.