Home / 13,579,342.92-18,739,119.38-7,467,771.40

Finding the Fourth Proportional to 13,579,342.92, 18,739,119.38 and 7,467,771.40

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Solution

The fourth proportional to 13,579,342.92, 18,739,119.38 and 7,467,771.40 is: 10,305,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,342.92 : 18,739,119.38 = 7,467,771.40 : x
  2. Step 2: Convert to fraction form
    13,579,342.92/18,739,119.38 = 7,467,771.40/x
  3. Step 3: Cross multiply
    13,579,342.92x = 18,739,119.38 × 7,467,771.40
  4. Step 4: Simplify right side
    13,579,342.92x = 139,939,459,767,149.73
  5. Step 5: Solve for x
    x = 139,939,459,767,149.73/13,579,342.92
  6. Step 6: Final answer
    x = 10,305,318.94

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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.