Finding the Fourth Proportional to 69,285,855.12, 95,603,828.84 and 39,911,450.28
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Solution
The fourth proportional to 69,285,855.12, 95,603,828.84 and 39,911,450.28 is: 55,071,665.85
Step by Step Solution
- Step 1: Write the proportion equation
69,285,855.12 : 95,603,828.84 = 39,911,450.28 : x - Step 2: Convert to fraction form
69,285,855.12/95,603,828.84 = 39,911,450.28/x - Step 3: Cross multiply
69,285,855.12x = 95,603,828.84 × 39,911,450.28 - Step 4: Simplify right side
69,285,855.12x = 3,815,687,461,325,290.50 - Step 5: Solve for x
x = 3,815,687,461,325,290.50/69,285,855.12 - Step 6: Final answer
x = 55,071,665.85
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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.