Home / 381,481,969.58-572,308,287.33-139,144,873.58

Finding the Fourth Proportional to 381,481,969.58, 572,308,287.33 and 139,144,873.58

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Solution

The fourth proportional to 381,481,969.58, 572,308,287.33 and 139,144,873.58 is: 208,748,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,481,969.58 : 572,308,287.33 = 139,144,873.58 : x
  2. Step 2: Convert to fraction form
    381,481,969.58/572,308,287.33 = 139,144,873.58/x
  3. Step 3: Cross multiply
    381,481,969.58x = 572,308,287.33 × 139,144,873.58
  4. Step 4: Simplify right side
    381,481,969.58x = 79,633,764,289,319,184
  5. Step 5: Solve for x
    x = 79,633,764,289,319,184/381,481,969.58
  6. Step 6: Final answer
    x = 208,748,435.42

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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.