Home / 13,729,856.75-18,947,202.36-7,619,268.59

Finding the Fourth Proportional to 13,729,856.75, 18,947,202.36 and 7,619,268.59

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Solution

The fourth proportional to 13,729,856.75, 18,947,202.36 and 7,619,268.59 is: 10,514,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,856.75 : 18,947,202.36 = 7,619,268.59 : x
  2. Step 2: Convert to fraction form
    13,729,856.75/18,947,202.36 = 7,619,268.59/x
  3. Step 3: Cross multiply
    13,729,856.75x = 18,947,202.36 × 7,619,268.59
  4. Step 4: Simplify right side
    13,729,856.75x = 144,363,823,809,921.88
  5. Step 5: Solve for x
    x = 144,363,823,809,921.88/13,729,856.75
  6. Step 6: Final answer
    x = 10,514,590.68

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1.5x scale

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.