Finding the Fourth Proportional to 285,664,185.84, 394,220,895.84 and 160,244,183.76
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Solution
The fourth proportional to 285,664,185.84, 394,220,895.84 and 160,244,183.76 is: 221,139,396.56
Step by Step Solution
- Step 1: Write the proportion equation
285,664,185.84 : 394,220,895.84 = 160,244,183.76 : x - Step 2: Convert to fraction form
285,664,185.84/394,220,895.84 = 160,244,183.76/x - Step 3: Cross multiply
285,664,185.84x = 394,220,895.84 × 160,244,183.76 - Step 4: Simplify right side
285,664,185.84x = 63,171,605,675,016,768 - Step 5: Solve for x
x = 63,171,605,675,016,768/285,664,185.84 - Step 6: Final answer
x = 221,139,396.56
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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.