Home / 1,396,313,981.20-2,094,303,010.20-578,340,989.20

Finding the Fourth Proportional to 1,396,313,981.20, 2,094,303,010.20 and 578,340,989.20

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Solution

The fourth proportional to 1,396,313,981.20, 2,094,303,010.20 and 578,340,989.20 is: 867,441,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,313,981.20 : 2,094,303,010.20 = 578,340,989.20 : x
  2. Step 2: Convert to fraction form
    1,396,313,981.20/2,094,303,010.20 = 578,340,989.20/x
  3. Step 3: Cross multiply
    1,396,313,981.20x = 2,094,303,010.20 × 578,340,989.20
  4. Step 4: Simplify right side
    1,396,313,981.20x = 1,211,221,274,603,605,760
  5. Step 5: Solve for x
    x = 1,211,221,274,603,605,760/1,396,313,981.20
  6. Step 6: Final answer
    x = 867,441,915.58

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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.