Home / 19,320,178.20-28,980,267.30-11,761,906.20

Finding the Fourth Proportional to 19,320,178.20, 28,980,267.30 and 11,761,906.20

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Solution

The fourth proportional to 19,320,178.20, 28,980,267.30 and 11,761,906.20 is: 17,642,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,178.20 : 28,980,267.30 = 11,761,906.20 : x
  2. Step 2: Convert to fraction form
    19,320,178.20/28,980,267.30 = 11,761,906.20/x
  3. Step 3: Cross multiply
    19,320,178.20x = 28,980,267.30 × 11,761,906.20
  4. Step 4: Simplify right side
    19,320,178.20x = 340,863,185,633,527.25
  5. Step 5: Solve for x
    x = 340,863,185,633,527.25/19,320,178.20
  6. Step 6: Final answer
    x = 17,642,859.30

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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.