Home / 2,784,358,828.85-4,178,378,239.33-1,310,920,012.86

Finding the Fourth Proportional to 2,784,358,828.85, 4,178,378,239.33 and 1,310,920,012.86

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Solution

The fourth proportional to 2,784,358,828.85, 4,178,378,239.33 and 1,310,920,012.86 is: 1,967,246,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,358,828.85 : 4,178,378,239.33 = 1,310,920,012.86 : x
  2. Step 2: Convert to fraction form
    2,784,358,828.85/4,178,378,239.33 = 1,310,920,012.86/x
  3. Step 3: Cross multiply
    2,784,358,828.85x = 4,178,378,239.33 × 1,310,920,012.86
  4. Step 4: Simplify right side
    2,784,358,828.85x = 5,477,519,655,246,529,536
  5. Step 5: Solve for x
    x = 5,477,519,655,246,529,536/2,784,358,828.85
  6. Step 6: Final answer
    x = 1,967,246,318.43

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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.