Home / 873,219,321.20-1,309,828,981.80-355,383,210.80

Finding the Fourth Proportional to 873,219,321.20, 1,309,828,981.80 and 355,383,210.80

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Solution

The fourth proportional to 873,219,321.20, 1,309,828,981.80 and 355,383,210.80 is: 533,074,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,219,321.20 : 1,309,828,981.80 = 355,383,210.80 : x
  2. Step 2: Convert to fraction form
    873,219,321.20/1,309,828,981.80 = 355,383,210.80/x
  3. Step 3: Cross multiply
    873,219,321.20x = 1,309,828,981.80 × 355,383,210.80
  4. Step 4: Simplify right side
    873,219,321.20x = 465,491,229,150,978,752
  5. Step 5: Solve for x
    x = 465,491,229,150,978,752/873,219,321.20
  6. Step 6: Final answer
    x = 533,074,816.20

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1.5x scale

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.