Finding the Fourth Proportional to 70,987,872.87, 106,481,710.06 and 39,458,934.74
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Solution
The fourth proportional to 70,987,872.87, 106,481,710.06 and 39,458,934.74 is: 59,188,346.94
Step by Step Solution
- Step 1: Write the proportion equation
70,987,872.87 : 106,481,710.06 = 39,458,934.74 : x - Step 2: Convert to fraction form
70,987,872.87/106,481,710.06 = 39,458,934.74/x - Step 3: Cross multiply
70,987,872.87x = 106,481,710.06 × 39,458,934.74 - Step 4: Simplify right side
70,987,872.87x = 4,201,654,848,287,379 - Step 5: Solve for x
x = 4,201,654,848,287,379/70,987,872.87 - Step 6: Final answer
x = 59,188,346.94
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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.