Home / 285,664,172.84-394,220,877.90-160,244,170.76

Finding the Fourth Proportional to 285,664,172.84, 394,220,877.90 and 160,244,170.76

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Solution

The fourth proportional to 285,664,172.84, 394,220,877.90 and 160,244,170.76 is: 221,139,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,664,172.84 : 394,220,877.90 = 160,244,170.76 : x
  2. Step 2: Convert to fraction form
    285,664,172.84/394,220,877.90 = 160,244,170.76/x
  3. Step 3: Cross multiply
    285,664,172.84x = 394,220,877.90 × 160,244,170.76
  4. Step 4: Simplify right side
    285,664,172.84x = 63,171,597,675,364,704
  5. Step 5: Solve for x
    x = 63,171,597,675,364,704/285,664,172.84
  6. Step 6: Final answer
    x = 221,139,378.62

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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.