Home / 285,664,170.84-394,220,875.14-160,244,168.76

Finding the Fourth Proportional to 285,664,170.84, 394,220,875.14 and 160,244,168.76

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Solution

The fourth proportional to 285,664,170.84, 394,220,875.14 and 160,244,168.76 is: 221,139,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,664,170.84 : 394,220,875.14 = 160,244,168.76 : x
  2. Step 2: Convert to fraction form
    285,664,170.84/394,220,875.14 = 160,244,168.76/x
  3. Step 3: Cross multiply
    285,664,170.84x = 394,220,875.14 × 160,244,168.76
  4. Step 4: Simplify right side
    285,664,170.84x = 63,171,596,444,649,040
  5. Step 5: Solve for x
    x = 63,171,596,444,649,040/285,664,170.84
  6. Step 6: Final answer
    x = 221,139,375.86

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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.