Home / 13,221,261.20-19,831,891.80-11,541,645.20

Finding the Fourth Proportional to 13,221,261.20, 19,831,891.80 and 11,541,645.20

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Solution

The fourth proportional to 13,221,261.20, 19,831,891.80 and 11,541,645.20 is: 17,312,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221,261.20 : 19,831,891.80 = 11,541,645.20 : x
  2. Step 2: Convert to fraction form
    13,221,261.20/19,831,891.80 = 11,541,645.20/x
  3. Step 3: Cross multiply
    13,221,261.20x = 19,831,891.80 × 11,541,645.20
  4. Step 4: Simplify right side
    13,221,261.20x = 228,892,658,800,389.34
  5. Step 5: Solve for x
    x = 228,892,658,800,389.34/13,221,261.20
  6. Step 6: Final answer
    x = 17,312,467.80

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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.