Finding the Fourth Proportional to 106,589,118.24, 159,872,917.32 and 72,265,902.84
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Solution
The fourth proportional to 106,589,118.24, 159,872,917.32 and 72,265,902.84 is: 108,391,559.11
Step by Step Solution
- Step 1: Write the proportion equation
106,589,118.24 : 159,872,917.32 = 72,265,902.84 : x - Step 2: Convert to fraction form
106,589,118.24/159,872,917.32 = 72,265,902.84/x - Step 3: Cross multiply
106,589,118.24x = 159,872,917.32 × 72,265,902.84 - Step 4: Simplify right side
106,589,118.24x = 11,553,360,709,794,474 - Step 5: Solve for x
x = 11,553,360,709,794,474/106,589,118.24 - Step 6: Final answer
x = 108,391,559.11
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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.