Finding the Fourth Proportional to 20,206,794.56, 30,329,354.36 and 12,507,148.68
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Solution
The fourth proportional to 20,206,794.56, 30,329,354.36 and 12,507,148.68 is: 18,772,583.81
Step by Step Solution
- Step 1: Write the proportion equation
20,206,794.56 : 30,329,354.36 = 12,507,148.68 : x - Step 2: Convert to fraction form
20,206,794.56/30,329,354.36 = 12,507,148.68/x - Step 3: Cross multiply
20,206,794.56x = 30,329,354.36 × 12,507,148.68 - Step 4: Simplify right side
20,206,794.56x = 379,333,744,348,926.25 - Step 5: Solve for x
x = 379,333,744,348,926.25/20,206,794.56 - Step 6: Final answer
x = 18,772,583.81
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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.