Home / 13,872,004.70-20,808,007.05-5,909,380.70

Finding the Fourth Proportional to 13,872,004.70, 20,808,007.05 and 5,909,380.70

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Solution

The fourth proportional to 13,872,004.70, 20,808,007.05 and 5,909,380.70 is: 8,864,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,004.70 : 20,808,007.05 = 5,909,380.70 : x
  2. Step 2: Convert to fraction form
    13,872,004.70/20,808,007.05 = 5,909,380.70/x
  3. Step 3: Cross multiply
    13,872,004.70x = 20,808,007.05 × 5,909,380.70
  4. Step 4: Simplify right side
    13,872,004.70x = 122,962,435,266,733.94
  5. Step 5: Solve for x
    x = 122,962,435,266,733.94/13,872,004.70
  6. Step 6: Final answer
    x = 8,864,071.05

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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.