Home / 20,185,982.85-27,856,300.91-11,483,970

Finding the Fourth Proportional to 20,185,982.85, 27,856,300.91 and 11,483,970

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Solution

The fourth proportional to 20,185,982.85, 27,856,300.91 and 11,483,970 is: 15,847,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185,982.85 : 27,856,300.91 = 11,483,970 : x
  2. Step 2: Convert to fraction form
    20,185,982.85/27,856,300.91 = 11,483,970/x
  3. Step 3: Cross multiply
    20,185,982.85x = 27,856,300.91 × 11,483,970
  4. Step 4: Simplify right side
    20,185,982.85x = 319,900,923,961,412.69
  5. Step 5: Solve for x
    x = 319,900,923,961,412.69/20,185,982.85
  6. Step 6: Final answer
    x = 15,847,676.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.