Home / 13,872,015.20-20,808,022.80-5,909,391.20

Finding the Fourth Proportional to 13,872,015.20, 20,808,022.80 and 5,909,391.20

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Solution

The fourth proportional to 13,872,015.20, 20,808,022.80 and 5,909,391.20 is: 8,864,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,015.20 : 20,808,022.80 = 5,909,391.20 : x
  2. Step 2: Convert to fraction form
    13,872,015.20/20,808,022.80 = 5,909,391.20/x
  3. Step 3: Cross multiply
    13,872,015.20x = 20,808,022.80 × 5,909,391.20
  4. Step 4: Simplify right side
    13,872,015.20x = 122,962,746,823,719.38
  5. Step 5: Solve for x
    x = 122,962,746,823,719.38/13,872,015.20
  6. Step 6: Final answer
    x = 8,864,086.80

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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.