Home / 830,394,874.20-1,244,742,005.70-485,170,800.60

Finding the Fourth Proportional to 830,394,874.20, 1,244,742,005.70 and 485,170,800.60

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Solution

The fourth proportional to 830,394,874.20, 1,244,742,005.70 and 485,170,800.60 is: 727,259,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,394,874.20 : 1,244,742,005.70 = 485,170,800.60 : x
  2. Step 2: Convert to fraction form
    830,394,874.20/1,244,742,005.70 = 485,170,800.60/x
  3. Step 3: Cross multiply
    830,394,874.20x = 1,244,742,005.70 × 485,170,800.60
  4. Step 4: Simplify right side
    830,394,874.20x = 603,912,475,445,918,848
  5. Step 5: Solve for x
    x = 603,912,475,445,918,848/830,394,874.20
  6. Step 6: Final answer
    x = 727,259,396.96

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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.