Finding the Fourth Proportional to 79,965,104.11, 119,947,656.16 and 19,380,830.11
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Solution
The fourth proportional to 79,965,104.11, 119,947,656.16 and 19,380,830.11 is: 29,071,245.16
Step by Step Solution
- Step 1: Write the proportion equation
79,965,104.11 : 119,947,656.16 = 19,380,830.11 : x - Step 2: Convert to fraction form
79,965,104.11/119,947,656.16 = 19,380,830.11/x - Step 3: Cross multiply
79,965,104.11x = 119,947,656.16 × 19,380,830.11 - Step 4: Simplify right side
79,965,104.11x = 2,324,685,145,854,012 - Step 5: Solve for x
x = 2,324,685,145,854,012/79,965,104.11 - Step 6: Final answer
x = 29,071,245.16
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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.