Home / 178,679,917.20-268,019,875.80-142,848,109.20

Finding the Fourth Proportional to 178,679,917.20, 268,019,875.80 and 142,848,109.20

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Solution

The fourth proportional to 178,679,917.20, 268,019,875.80 and 142,848,109.20 is: 214,272,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,679,917.20 : 268,019,875.80 = 142,848,109.20 : x
  2. Step 2: Convert to fraction form
    178,679,917.20/268,019,875.80 = 142,848,109.20/x
  3. Step 3: Cross multiply
    178,679,917.20x = 268,019,875.80 × 142,848,109.20
  4. Step 4: Simplify right side
    178,679,917.20x = 38,286,132,486,048,832
  5. Step 5: Solve for x
    x = 38,286,132,486,048,832/178,679,917.20
  6. Step 6: Final answer
    x = 214,272,163.80

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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.