Home / 285,664,180.84-394,220,888.96-160,244,178.76

Finding the Fourth Proportional to 285,664,180.84, 394,220,888.96 and 160,244,178.76

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Solution

The fourth proportional to 285,664,180.84, 394,220,888.96 and 160,244,178.76 is: 221,139,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,664,180.84 : 394,220,888.96 = 160,244,178.76 : x
  2. Step 2: Convert to fraction form
    285,664,180.84/394,220,888.96 = 160,244,178.76/x
  3. Step 3: Cross multiply
    285,664,180.84x = 394,220,888.96 × 160,244,178.76
  4. Step 4: Simplify right side
    285,664,180.84x = 63,171,602,601,432,344
  5. Step 5: Solve for x
    x = 63,171,602,601,432,344/285,664,180.84
  6. Step 6: Final answer
    x = 221,139,389.67

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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.