Finding the Fourth Proportional to 8,091,386.20, 12,135,329.70 and 3,542,426.20
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Solution
The fourth proportional to 8,091,386.20, 12,135,329.70 and 3,542,426.20 is: 5,312,873.32
Step by Step Solution
- Step 1: Write the proportion equation
8,091,386.20 : 12,135,329.70 = 3,542,426.20 : x - Step 2: Convert to fraction form
8,091,386.20/12,135,329.70 = 3,542,426.20/x - Step 3: Cross multiply
8,091,386.20x = 12,135,329.70 × 3,542,426.20 - Step 4: Simplify right side
8,091,386.20x = 42,988,509,874,918.14 - Step 5: Solve for x
x = 42,988,509,874,918.14/8,091,386.20 - Step 6: Final answer
x = 5,312,873.32
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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.