Home / 13,469,847.28-18,588,406.10-7,668,628.90

Finding the Fourth Proportional to 13,469,847.28, 18,588,406.10 and 7,668,628.90

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Solution

The fourth proportional to 13,469,847.28, 18,588,406.10 and 7,668,628.90 is: 10,582,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469,847.28 : 18,588,406.10 = 7,668,628.90 : x
  2. Step 2: Convert to fraction form
    13,469,847.28/18,588,406.10 = 7,668,628.90/x
  3. Step 3: Cross multiply
    13,469,847.28x = 18,588,406.10 × 7,668,628.90
  4. Step 4: Simplify right side
    13,469,847.28x = 142,547,588,138,582.12
  5. Step 5: Solve for x
    x = 142,547,588,138,582.12/13,469,847.28
  6. Step 6: Final answer
    x = 10,582,717.47

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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.