Finding the Fourth Proportional to 8,742,990.33, 13,115,584.11 and 4,693,912.65
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Solution
The fourth proportional to 8,742,990.33, 13,115,584.11 and 4,693,912.65 is: 7,041,458.80
Step by Step Solution
- Step 1: Write the proportion equation
8,742,990.33 : 13,115,584.11 = 4,693,912.65 : x - Step 2: Convert to fraction form
8,742,990.33/13,115,584.11 = 4,693,912.65/x - Step 3: Cross multiply
8,742,990.33x = 13,115,584.11 × 4,693,912.65 - Step 4: Simplify right side
8,742,990.33x = 61,563,406,166,067.99 - Step 5: Solve for x
x = 61,563,406,166,067.99/8,742,990.33 - Step 6: Final answer
x = 7,041,458.80
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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.