Home / 15,485,865.40-23,231,898.78-8,672,128.40

Finding the Fourth Proportional to 15,485,865.40, 23,231,898.78 and 8,672,128.40

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Solution

The fourth proportional to 15,485,865.40, 23,231,898.78 and 8,672,128.40 is: 13,009,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485,865.40 : 23,231,898.78 = 8,672,128.40 : x
  2. Step 2: Convert to fraction form
    15,485,865.40/23,231,898.78 = 8,672,128.40/x
  3. Step 3: Cross multiply
    15,485,865.40x = 23,231,898.78 × 8,672,128.40
  4. Step 4: Simplify right side
    15,485,865.40x = 201,470,009,195,963.38
  5. Step 5: Solve for x
    x = 201,470,009,195,963.38/15,485,865.40
  6. Step 6: Final answer
    x = 13,009,928.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.