Home / 13,672,859.40-20,509,289.10-8,571,025.80

Finding the Fourth Proportional to 13,672,859.40, 20,509,289.10 and 8,571,025.80

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Solution

The fourth proportional to 13,672,859.40, 20,509,289.10 and 8,571,025.80 is: 12,856,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672,859.40 : 20,509,289.10 = 8,571,025.80 : x
  2. Step 2: Convert to fraction form
    13,672,859.40/20,509,289.10 = 8,571,025.80/x
  3. Step 3: Cross multiply
    13,672,859.40x = 20,509,289.10 × 8,571,025.80
  4. Step 4: Simplify right side
    13,672,859.40x = 175,785,646,015,758.81
  5. Step 5: Solve for x
    x = 175,785,646,015,758.81/13,672,859.40
  6. Step 6: Final answer
    x = 12,856,538.70

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1.5x scale

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.