Finding the Fourth Proportional to 13,139,734.72, 19,698,931.68 and 5,469,121.17
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Solution
The fourth proportional to 13,139,734.72, 19,698,931.68 and 5,469,121.17 is: 8,199,240.44
Step by Step Solution
- Step 1: Write the proportion equation
13,139,734.72 : 19,698,931.68 = 5,469,121.17 : x - Step 2: Convert to fraction form
13,139,734.72/19,698,931.68 = 5,469,121.17/x - Step 3: Cross multiply
13,139,734.72x = 19,698,931.68 × 5,469,121.17 - Step 4: Simplify right side
13,139,734.72x = 107,735,844,277,471.66 - Step 5: Solve for x
x = 107,735,844,277,471.66/13,139,734.72 - Step 6: Final answer
x = 8,199,240.44
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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.