Home / 20,221,406.10-30,332,109.15-13,418,961.30

Finding the Fourth Proportional to 20,221,406.10, 30,332,109.15 and 13,418,961.30

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Solution

The fourth proportional to 20,221,406.10, 30,332,109.15 and 13,418,961.30 is: 20,128,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,406.10 : 30,332,109.15 = 13,418,961.30 : x
  2. Step 2: Convert to fraction form
    20,221,406.10/30,332,109.15 = 13,418,961.30/x
  3. Step 3: Cross multiply
    20,221,406.10x = 30,332,109.15 × 13,418,961.30
  4. Step 4: Simplify right side
    20,221,406.10x = 407,025,398,831,225.88
  5. Step 5: Solve for x
    x = 407,025,398,831,225.88/20,221,406.10
  6. Step 6: Final answer
    x = 20,128,441.95

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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.