Home / 13,128,408.87-18,100,363.14-10,764,898.85

Finding the Fourth Proportional to 13,128,408.87, 18,100,363.14 and 10,764,898.85

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Solution

The fourth proportional to 13,128,408.87, 18,100,363.14 and 10,764,898.85 is: 14,841,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,408.87 : 18,100,363.14 = 10,764,898.85 : x
  2. Step 2: Convert to fraction form
    13,128,408.87/18,100,363.14 = 10,764,898.85/x
  3. Step 3: Cross multiply
    13,128,408.87x = 18,100,363.14 × 10,764,898.85
  4. Step 4: Simplify right side
    13,128,408.87x = 194,848,578,259,866.59
  5. Step 5: Solve for x
    x = 194,848,578,259,866.59/13,128,408.87
  6. Step 6: Final answer
    x = 14,841,751.21

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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.