Home / 10,638,422.20-15,959,875.20-3,449,395.60

Finding the Fourth Proportional to 10,638,422.20, 15,959,875.20 and 3,449,395.60

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Solution

The fourth proportional to 10,638,422.20, 15,959,875.20 and 3,449,395.60 is: 5,174,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638,422.20 : 15,959,875.20 = 3,449,395.60 : x
  2. Step 2: Convert to fraction form
    10,638,422.20/15,959,875.20 = 3,449,395.60/x
  3. Step 3: Cross multiply
    10,638,422.20x = 15,959,875.20 × 3,449,395.60
  4. Step 4: Simplify right side
    10,638,422.20x = 55,051,923,291,429.12
  5. Step 5: Solve for x
    x = 55,051,923,291,429.12/10,638,422.20
  6. Step 6: Final answer
    x = 5,174,820.31

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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.