Home / 13,501,550.70-18,630,136.36-8,200,489

Finding the Fourth Proportional to 13,501,550.70, 18,630,136.36 and 8,200,489

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Solution

The fourth proportional to 13,501,550.70, 18,630,136.36 and 8,200,489 is: 11,315,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501,550.70 : 18,630,136.36 = 8,200,489 : x
  2. Step 2: Convert to fraction form
    13,501,550.70/18,630,136.36 = 8,200,489/x
  3. Step 3: Cross multiply
    13,501,550.70x = 18,630,136.36 × 8,200,489
  4. Step 4: Simplify right side
    13,501,550.70x = 152,776,228,288,680.03
  5. Step 5: Solve for x
    x = 152,776,228,288,680.03/13,501,550.70
  6. Step 6: Final answer
    x = 11,315,457.88

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Double scale
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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.