Finding the Fourth Proportional to 15,851,057.81, 21,874,089.70 and 9,325,107.53
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Solution
The fourth proportional to 15,851,057.81, 21,874,089.70 and 9,325,107.53 is: 12,868,430.67
Step by Step Solution
- Step 1: Write the proportion equation
15,851,057.81 : 21,874,089.70 = 9,325,107.53 : x - Step 2: Convert to fraction form
15,851,057.81/21,874,089.70 = 9,325,107.53/x - Step 3: Cross multiply
15,851,057.81x = 21,874,089.70 × 9,325,107.53 - Step 4: Simplify right side
15,851,057.81x = 203,978,238,440,682.25 - Step 5: Solve for x
x = 203,978,238,440,682.25/15,851,057.81 - Step 6: Final answer
x = 12,868,430.67
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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.