Home / 13,188,246.69-18,190,693.67-9,276,299.65

Finding the Fourth Proportional to 13,188,246.69, 18,190,693.67 and 9,276,299.65

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Solution

The fourth proportional to 13,188,246.69, 18,190,693.67 and 9,276,299.65 is: 12,794,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,246.69 : 18,190,693.67 = 9,276,299.65 : x
  2. Step 2: Convert to fraction form
    13,188,246.69/18,190,693.67 = 9,276,299.65/x
  3. Step 3: Cross multiply
    13,188,246.69x = 18,190,693.67 × 9,276,299.65
  4. Step 4: Simplify right side
    13,188,246.69x = 168,742,325,300,635.06
  5. Step 5: Solve for x
    x = 168,742,325,300,635.06/13,188,246.69
  6. Step 6: Final answer
    x = 12,794,902.10

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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.