Home / 1,279,494,017.12-1,919,949,225.36-624,450,469.28

Finding the Fourth Proportional to 1,279,494,017.12, 1,919,949,225.36 and 624,450,469.28

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Solution

The fourth proportional to 1,279,494,017.12, 1,919,949,225.36 and 624,450,469.28 is: 937,021,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,494,017.12 : 1,919,949,225.36 = 624,450,469.28 : x
  2. Step 2: Convert to fraction form
    1,279,494,017.12/1,919,949,225.36 = 624,450,469.28/x
  3. Step 3: Cross multiply
    1,279,494,017.12x = 1,919,949,225.36 × 624,450,469.28
  4. Step 4: Simplify right side
    1,279,494,017.12x = 1,198,913,194,769,824,256
  5. Step 5: Solve for x
    x = 1,198,913,194,769,824,256/1,279,494,017.12
  6. Step 6: Final answer
    x = 937,021,337.13

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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.