Home / 19,200,491.51-28,800,765-7,840,940.13

Finding the Fourth Proportional to 19,200,491.51, 28,800,765 and 7,840,940.13

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Solution

The fourth proportional to 19,200,491.51, 28,800,765 and 7,840,940.13 is: 11,761,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,491.51 : 28,800,765 = 7,840,940.13 : x
  2. Step 2: Convert to fraction form
    19,200,491.51/28,800,765 = 7,840,940.13/x
  3. Step 3: Cross multiply
    19,200,491.51x = 28,800,765 × 7,840,940.13
  4. Step 4: Simplify right side
    19,200,491.51x = 225,825,074,063,199.44
  5. Step 5: Solve for x
    x = 225,825,074,063,199.44/19,200,491.51
  6. Step 6: Final answer
    x = 11,761,421.52

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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.