Home / 1,201,443,856.80-1,802,165,785.20-383,616,016.80

Finding the Fourth Proportional to 1,201,443,856.80, 1,802,165,785.20 and 383,616,016.80

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Solution

The fourth proportional to 1,201,443,856.80, 1,802,165,785.20 and 383,616,016.80 is: 575,424,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,443,856.80 : 1,802,165,785.20 = 383,616,016.80 : x
  2. Step 2: Convert to fraction form
    1,201,443,856.80/1,802,165,785.20 = 383,616,016.80/x
  3. Step 3: Cross multiply
    1,201,443,856.80x = 1,802,165,785.20 × 383,616,016.80
  4. Step 4: Simplify right side
    1,201,443,856.80x = 691,339,660,131,668,480
  5. Step 5: Solve for x
    x = 691,339,660,131,668,480/1,201,443,856.80
  6. Step 6: Final answer
    x = 575,424,025.20

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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.