Finding the Fourth Proportional to 18,890,562.24, 26,068,203.36 and 11,158,107.84
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Solution
The fourth proportional to 18,890,562.24, 26,068,203.36 and 11,158,107.84 is: 15,397,732.51
Step by Step Solution
- Step 1: Write the proportion equation
18,890,562.24 : 26,068,203.36 = 11,158,107.84 : x - Step 2: Convert to fraction form
18,890,562.24/26,068,203.36 = 11,158,107.84/x - Step 3: Cross multiply
18,890,562.24x = 26,068,203.36 × 11,158,107.84 - Step 4: Simplify right side
18,890,562.24x = 290,871,824,285,930.31 - Step 5: Solve for x
x = 290,871,824,285,930.31/18,890,562.24 - Step 6: Final answer
x = 15,397,732.51
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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.