Home / 1,309,928,025.60-1,958,923,954.08-978,168,009.60

Finding the Fourth Proportional to 1,309,928,025.60, 1,958,923,954.08 and 978,168,009.60

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Solution

The fourth proportional to 1,309,928,025.60, 1,958,923,954.08 and 978,168,009.60 is: 1,462,795,441.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,928,025.60 : 1,958,923,954.08 = 978,168,009.60 : x
  2. Step 2: Convert to fraction form
    1,309,928,025.60/1,958,923,954.08 = 978,168,009.60/x
  3. Step 3: Cross multiply
    1,309,928,025.60x = 1,958,923,954.08 × 978,168,009.60
  4. Step 4: Simplify right side
    1,309,928,025.60x = 1,916,156,745,120,195,328
  5. Step 5: Solve for x
    x = 1,916,156,745,120,195,328/1,309,928,025.60
  6. Step 6: Final answer
    x = 1,462,795,441.94

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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.