Finding the Fourth Proportional to 43,764,203.20, 65,658,439.20 and 18,217,246.40
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Solution
The fourth proportional to 43,764,203.20, 65,658,439.20 and 18,217,246.40 is: 27,330,920.65
Step by Step Solution
- Step 1: Write the proportion equation
43,764,203.20 : 65,658,439.20 = 18,217,246.40 : x - Step 2: Convert to fraction form
43,764,203.20/65,658,439.20 = 18,217,246.40/x - Step 3: Cross multiply
43,764,203.20x = 65,658,439.20 × 18,217,246.40 - Step 4: Simplify right side
43,764,203.20x = 1,196,115,965,145,818.75 - Step 5: Solve for x
x = 1,196,115,965,145,818.75/43,764,203.20 - Step 6: Final answer
x = 27,330,920.65
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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.