Home / 13,978,064.70-19,289,689.92-7,866,493.20

Finding the Fourth Proportional to 13,978,064.70, 19,289,689.92 and 7,866,493.20

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Solution

The fourth proportional to 13,978,064.70, 19,289,689.92 and 7,866,493.20 is: 10,855,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,978,064.70 : 19,289,689.92 = 7,866,493.20 : x
  2. Step 2: Convert to fraction form
    13,978,064.70/19,289,689.92 = 7,866,493.20/x
  3. Step 3: Cross multiply
    13,978,064.70x = 19,289,689.92 × 7,866,493.20
  4. Step 4: Simplify right side
    13,978,064.70x = 151,742,214,585,788.56
  5. Step 5: Solve for x
    x = 151,742,214,585,788.56/13,978,064.70
  6. Step 6: Final answer
    x = 10,855,738.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.