Finding the Fourth Proportional to 20,330,181.99, 30,507,390.09 and 7,377,343.11
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Solution
The fourth proportional to 20,330,181.99, 30,507,390.09 and 7,377,343.11 is: 11,070,411.68
Step by Step Solution
- Step 1: Write the proportion equation
20,330,181.99 : 30,507,390.09 = 7,377,343.11 : x - Step 2: Convert to fraction form
20,330,181.99/30,507,390.09 = 7,377,343.11/x - Step 3: Cross multiply
20,330,181.99x = 30,507,390.09 × 7,377,343.11 - Step 4: Simplify right side
20,330,181.99x = 225,063,484,084,543.78 - Step 5: Solve for x
x = 225,063,484,084,543.78/20,330,181.99 - Step 6: Final answer
x = 11,070,411.68
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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.