Home / 13,419,985.20-20,106,358.20-11,530,417.20

Finding the Fourth Proportional to 13,419,985.20, 20,106,358.20 and 11,530,417.20

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Solution

The fourth proportional to 13,419,985.20, 20,106,358.20 and 11,530,417.20 is: 17,275,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,985.20 : 20,106,358.20 = 11,530,417.20 : x
  2. Step 2: Convert to fraction form
    13,419,985.20/20,106,358.20 = 11,530,417.20/x
  3. Step 3: Cross multiply
    13,419,985.20x = 20,106,358.20 × 11,530,417.20
  4. Step 4: Simplify right side
    13,419,985.20x = 231,834,698,418,641.03
  5. Step 5: Solve for x
    x = 231,834,698,418,641.03/13,419,985.20
  6. Step 6: Final answer
    x = 17,275,331.90

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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.