Finding the Fourth Proportional to 18,354,688.53, 27,507,231.46 and 6,988,937.01
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Solution
The fourth proportional to 18,354,688.53, 27,507,231.46 and 6,988,937.01 is: 10,473,961.88
Step by Step Solution
- Step 1: Write the proportion equation
18,354,688.53 : 27,507,231.46 = 6,988,937.01 : x - Step 2: Convert to fraction form
18,354,688.53/27,507,231.46 = 6,988,937.01/x - Step 3: Cross multiply
18,354,688.53x = 27,507,231.46 × 6,988,937.01 - Step 4: Simplify right side
18,354,688.53x = 192,246,307,993,430.34 - Step 5: Solve for x
x = 192,246,307,993,430.34/18,354,688.53 - Step 6: Final answer
x = 10,473,961.88
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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.