Home / 14,500,862.72-20,011,704.08-7,974,997.28

Finding the Fourth Proportional to 14,500,862.72, 20,011,704.08 and 7,974,997.28

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Solution

The fourth proportional to 14,500,862.72, 20,011,704.08 and 7,974,997.28 is: 11,005,778.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500,862.72 : 20,011,704.08 = 7,974,997.28 : x
  2. Step 2: Convert to fraction form
    14,500,862.72/20,011,704.08 = 7,974,997.28/x
  3. Step 3: Cross multiply
    14,500,862.72x = 20,011,704.08 × 7,974,997.28
  4. Step 4: Simplify right side
    14,500,862.72x = 159,593,285,606,164.91
  5. Step 5: Solve for x
    x = 159,593,285,606,164.91/14,500,862.72
  6. Step 6: Final answer
    x = 11,005,778.67

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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.