Finding the Fourth Proportional to 72,204,925, 99,642,211.41 and 39,165,091.42
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Solution
The fourth proportional to 72,204,925, 99,642,211.41 and 39,165,091.42 is: 54,047,508.80
Step by Step Solution
- Step 1: Write the proportion equation
72,204,925 : 99,642,211.41 = 39,165,091.42 : x - Step 2: Convert to fraction form
72,204,925/99,642,211.41 = 39,165,091.42/x - Step 3: Cross multiply
72,204,925x = 99,642,211.41 × 39,165,091.42 - Step 4: Simplify right side
72,204,925x = 3,902,496,319,163,617 - Step 5: Solve for x
x = 3,902,496,319,163,617/72,204,925 - Step 6: Final answer
x = 54,047,508.80
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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.