Finding the Fourth Proportional to 6,782,070.36, 10,173,201.27 and 1,989,858.57
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Solution
The fourth proportional to 6,782,070.36, 10,173,201.27 and 1,989,858.57 is: 2,984,815.94
Step by Step Solution
- Step 1: Write the proportion equation
6,782,070.36 : 10,173,201.27 = 1,989,858.57 : x - Step 2: Convert to fraction form
6,782,070.36/10,173,201.27 = 1,989,858.57/x - Step 3: Cross multiply
6,782,070.36x = 10,173,201.27 × 1,989,858.57 - Step 4: Simplify right side
6,782,070.36x = 20,243,231,731,444.38 - Step 5: Solve for x
x = 20,243,231,731,444.38/6,782,070.36 - Step 6: Final answer
x = 2,984,815.94
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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.