Finding the Fourth Proportional to 115,286,976.56, 159,080,315.40 and 68,867,376.68
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Solution
The fourth proportional to 115,286,976.56, 159,080,315.40 and 68,867,376.68 is: 95,027,594.01
Step by Step Solution
- Step 1: Write the proportion equation
115,286,976.56 : 159,080,315.40 = 68,867,376.68 : x - Step 2: Convert to fraction form
115,286,976.56/159,080,315.40 = 68,867,376.68/x - Step 3: Cross multiply
115,286,976.56x = 159,080,315.40 × 68,867,376.68 - Step 4: Simplify right side
115,286,976.56x = 10,955,444,003,025,006 - Step 5: Solve for x
x = 10,955,444,003,025,006/115,286,976.56 - Step 6: Final answer
x = 95,027,594.01
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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.