Finding the Fourth Proportional to 115,951,703.51, 160,017,247.37 and 68,258,352.11
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Solution
The fourth proportional to 115,951,703.51, 160,017,247.37 and 68,258,352.11 is: 94,198,819.71
Step by Step Solution
- Step 1: Write the proportion equation
115,951,703.51 : 160,017,247.37 = 68,258,352.11 : x - Step 2: Convert to fraction form
115,951,703.51/160,017,247.37 = 68,258,352.11/x - Step 3: Cross multiply
115,951,703.51x = 160,017,247.37 × 68,258,352.11 - Step 4: Simplify right side
115,951,703.51x = 10,922,513,614,024,992 - Step 5: Solve for x
x = 10,922,513,614,024,992/115,951,703.51 - Step 6: Final answer
x = 94,198,819.71
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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.