Home / 13,321,417.32-18,383,555.46-7,209,845.76

Finding the Fourth Proportional to 13,321,417.32, 18,383,555.46 and 7,209,845.76

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Solution

The fourth proportional to 13,321,417.32, 18,383,555.46 and 7,209,845.76 is: 9,949,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,417.32 : 18,383,555.46 = 7,209,845.76 : x
  2. Step 2: Convert to fraction form
    13,321,417.32/18,383,555.46 = 7,209,845.76/x
  3. Step 3: Cross multiply
    13,321,417.32x = 18,383,555.46 × 7,209,845.76
  4. Step 4: Simplify right side
    13,321,417.32x = 132,542,599,387,005.86
  5. Step 5: Solve for x
    x = 132,542,599,387,005.86/13,321,417.32
  6. Step 6: Final answer
    x = 9,949,586.91

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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.