Finding the Fourth Proportional to 71,765,469.84, 99,165,895.88 and 51,103,043.92
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Solution
The fourth proportional to 71,765,469.84, 99,165,895.88 and 51,103,043.92 is: 70,614,449.31
Step by Step Solution
- Step 1: Write the proportion equation
71,765,469.84 : 99,165,895.88 = 51,103,043.92 : x - Step 2: Convert to fraction form
71,765,469.84/99,165,895.88 = 51,103,043.92/x - Step 3: Cross multiply
71,765,469.84x = 99,165,895.88 × 51,103,043.92 - Step 4: Simplify right side
71,765,469.84x = 5,067,679,132,521,787 - Step 5: Solve for x
x = 5,067,679,132,521,787/71,765,469.84 - Step 6: Final answer
x = 70,614,449.31
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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.