Home / 381,481,968.58-572,308,285.83-139,144,872.58

Finding the Fourth Proportional to 381,481,968.58, 572,308,285.83 and 139,144,872.58

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Solution

The fourth proportional to 381,481,968.58, 572,308,285.83 and 139,144,872.58 is: 208,748,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,481,968.58 : 572,308,285.83 = 139,144,872.58 : x
  2. Step 2: Convert to fraction form
    381,481,968.58/572,308,285.83 = 139,144,872.58/x
  3. Step 3: Cross multiply
    381,481,968.58x = 572,308,285.83 × 139,144,872.58
  4. Step 4: Simplify right side
    381,481,968.58x = 79,633,763,508,293,584
  5. Step 5: Solve for x
    x = 79,633,763,508,293,584/381,481,968.58
  6. Step 6: Final answer
    x = 208,748,433.92

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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.