Finding the Fourth Proportional to 10,965,220.65, 15,133,588.08 and 6,318,115.99
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Solution
The fourth proportional to 10,965,220.65, 15,133,588.08 and 6,318,115.99 is: 8,719,912.52
Step by Step Solution
- Step 1: Write the proportion equation
10,965,220.65 : 15,133,588.08 = 6,318,115.99 : x - Step 2: Convert to fraction form
10,965,220.65/15,133,588.08 = 6,318,115.99/x - Step 3: Cross multiply
10,965,220.65x = 15,133,588.08 × 6,318,115.99 - Step 4: Simplify right side
10,965,220.65x = 95,615,764,834,321.41 - Step 5: Solve for x
x = 95,615,764,834,321.41/10,965,220.65 - Step 6: Final answer
x = 8,719,912.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.