Home / 13,633,257.96-18,813,789-7,438,213.80

Finding the Fourth Proportional to 13,633,257.96, 18,813,789 and 7,438,213.80

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Solution

The fourth proportional to 13,633,257.96, 18,813,789 and 7,438,213.80 is: 10,264,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633,257.96 : 18,813,789 = 7,438,213.80 : x
  2. Step 2: Convert to fraction form
    13,633,257.96/18,813,789 = 7,438,213.80/x
  3. Step 3: Cross multiply
    13,633,257.96x = 18,813,789 × 7,438,213.80
  4. Step 4: Simplify right side
    13,633,257.96x = 139,940,984,970,088.20
  5. Step 5: Solve for x
    x = 139,940,984,970,088.20/13,633,257.96
  6. Step 6: Final answer
    x = 10,264,676.67

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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.