Finding the Fourth Proportional to 30,607,127.37, 42,237,421.11 and 17,376,183.99
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Solution
The fourth proportional to 30,607,127.37, 42,237,421.11 and 17,376,183.99 is: 23,978,898.50
Step by Step Solution
- Step 1: Write the proportion equation
30,607,127.37 : 42,237,421.11 = 17,376,183.99 : x - Step 2: Convert to fraction form
30,607,127.37/42,237,421.11 = 17,376,183.99/x - Step 3: Cross multiply
30,607,127.37x = 42,237,421.11 × 17,376,183.99 - Step 4: Simplify right side
30,607,127.37x = 733,925,200,470,470 - Step 5: Solve for x
x = 733,925,200,470,470/30,607,127.37 - Step 6: Final answer
x = 23,978,898.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.