Home / 13,533,829.62-18,676,709.91-7,422,301.86

Finding the Fourth Proportional to 13,533,829.62, 18,676,709.91 and 7,422,301.86

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Solution

The fourth proportional to 13,533,829.62, 18,676,709.91 and 7,422,301.86 is: 10,242,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533,829.62 : 18,676,709.91 = 7,422,301.86 : x
  2. Step 2: Convert to fraction form
    13,533,829.62/18,676,709.91 = 7,422,301.86/x
  3. Step 3: Cross multiply
    13,533,829.62x = 18,676,709.91 × 7,422,301.86
  4. Step 4: Simplify right side
    13,533,829.62x = 138,624,178,703,673.44
  5. Step 5: Solve for x
    x = 138,624,178,703,673.44/13,533,829.62
  6. Step 6: Final answer
    x = 10,242,790.30

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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.