Home / 5,120,786.31-7,679,491.03-1,708,132.51

Finding the Fourth Proportional to 5,120,786.31, 7,679,491.03 and 1,708,132.51

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Solution

The fourth proportional to 5,120,786.31, 7,679,491.03 and 1,708,132.51 is: 2,561,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,786.31 : 7,679,491.03 = 1,708,132.51 : x
  2. Step 2: Convert to fraction form
    5,120,786.31/7,679,491.03 = 1,708,132.51/x
  3. Step 3: Cross multiply
    5,120,786.31x = 7,679,491.03 × 1,708,132.51
  4. Step 4: Simplify right side
    5,120,786.31x = 13,117,588,257,133.78
  5. Step 5: Solve for x
    x = 13,117,588,257,133.78/5,120,786.31
  6. Step 6: Final answer
    x = 2,561,635.55

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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.