Finding the Fourth Proportional to 11,205,043.20, 15,462,325.44 and 6,621,791.04
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Solution
The fourth proportional to 11,205,043.20, 15,462,325.44 and 6,621,791.04 is: 9,137,696.86
Step by Step Solution
- Step 1: Write the proportion equation
11,205,043.20 : 15,462,325.44 = 6,621,791.04 : x - Step 2: Convert to fraction form
11,205,043.20/15,462,325.44 = 6,621,791.04/x - Step 3: Cross multiply
11,205,043.20x = 15,462,325.44 × 6,621,791.04 - Step 4: Simplify right side
11,205,043.20x = 102,388,288,056,156.06 - Step 5: Solve for x
x = 102,388,288,056,156.06/11,205,043.20 - Step 6: Final answer
x = 9,137,696.86
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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.