Home / 769,669,539.78-1,154,387,659.33-209,475,022.49

Finding the Fourth Proportional to 769,669,539.78, 1,154,387,659.33 and 209,475,022.49

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Solution

The fourth proportional to 769,669,539.78, 1,154,387,659.33 and 209,475,022.49 is: 314,180,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,669,539.78 : 1,154,387,659.33 = 209,475,022.49 : x
  2. Step 2: Convert to fraction form
    769,669,539.78/1,154,387,659.33 = 209,475,022.49/x
  3. Step 3: Cross multiply
    769,669,539.78x = 1,154,387,659.33 × 209,475,022.49
  4. Step 4: Simplify right side
    769,669,539.78x = 241,815,380,899,171,072
  5. Step 5: Solve for x
    x = 241,815,380,899,171,072/769,669,539.78
  6. Step 6: Final answer
    x = 314,180,785.91

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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.