Home / 13,621,939.92-18,797,917.32-7,510,211.28

Finding the Fourth Proportional to 13,621,939.92, 18,797,917.32 and 7,510,211.28

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Solution

The fourth proportional to 13,621,939.92, 18,797,917.32 and 7,510,211.28 is: 10,363,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,939.92 : 18,797,917.32 = 7,510,211.28 : x
  2. Step 2: Convert to fraction form
    13,621,939.92/18,797,917.32 = 7,510,211.28/x
  3. Step 3: Cross multiply
    13,621,939.92x = 18,797,917.32 × 7,510,211.28
  4. Step 4: Simplify right side
    13,621,939.92x = 141,176,330,697,171.38
  5. Step 5: Solve for x
    x = 141,176,330,697,171.38/13,621,939.92
  6. Step 6: Final answer
    x = 10,363,893.21

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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.