Home / 13,125,865.20-19,688,797.80-11,929,138.80

Finding the Fourth Proportional to 13,125,865.20, 19,688,797.80 and 11,929,138.80

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Solution

The fourth proportional to 13,125,865.20, 19,688,797.80 and 11,929,138.80 is: 17,893,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,865.20 : 19,688,797.80 = 11,929,138.80 : x
  2. Step 2: Convert to fraction form
    13,125,865.20/19,688,797.80 = 11,929,138.80/x
  3. Step 3: Cross multiply
    13,125,865.20x = 19,688,797.80 × 11,929,138.80
  4. Step 4: Simplify right side
    13,125,865.20x = 234,870,401,761,334.66
  5. Step 5: Solve for x
    x = 234,870,401,761,334.66/13,125,865.20
  6. Step 6: Final answer
    x = 17,893,708.20

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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.