Finding the Fourth Proportional to 13,306,685.38, 18,363,464.97 and 7,804,029.05
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Solution
The fourth proportional to 13,306,685.38, 18,363,464.97 and 7,804,029.05 is: 10,769,700.34
Step by Step Solution
- Step 1: Write the proportion equation
13,306,685.38 : 18,363,464.97 = 7,804,029.05 : x - Step 2: Convert to fraction form
13,306,685.38/18,363,464.97 = 7,804,029.05/x - Step 3: Cross multiply
13,306,685.38x = 18,363,464.97 × 7,804,029.05 - Step 4: Simplify right side
13,306,685.38x = 143,309,014,084,537.38 - Step 5: Solve for x
x = 143,309,014,084,537.38/13,306,685.38 - Step 6: Final answer
x = 10,769,700.34
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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.