Home / 13,457,321.24-18,570,866.36-7,655,979.33

Finding the Fourth Proportional to 13,457,321.24, 18,570,866.36 and 7,655,979.33

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Solution

The fourth proportional to 13,457,321.24, 18,570,866.36 and 7,655,979.33 is: 10,565,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,321.24 : 18,570,866.36 = 7,655,979.33 : x
  2. Step 2: Convert to fraction form
    13,457,321.24/18,570,866.36 = 7,655,979.33/x
  3. Step 3: Cross multiply
    13,457,321.24x = 18,570,866.36 × 7,655,979.33
  4. Step 4: Simplify right side
    13,457,321.24x = 142,178,168,954,072.44
  5. Step 5: Solve for x
    x = 142,178,168,954,072.44/13,457,321.24
  6. Step 6: Final answer
    x = 10,565,116.67

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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.