Home / 12,929,869-19,394,900.70-5,739,469.84

Finding the Fourth Proportional to 12,929,869, 19,394,900.70 and 5,739,469.84

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Solution

The fourth proportional to 12,929,869, 19,394,900.70 and 5,739,469.84 is: 8,609,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,869 : 19,394,900.70 = 5,739,469.84 : x
  2. Step 2: Convert to fraction form
    12,929,869/19,394,900.70 = 5,739,469.84/x
  3. Step 3: Cross multiply
    12,929,869x = 19,394,900.70 × 5,739,469.84
  4. Step 4: Simplify right side
    12,929,869x = 111,316,447,617,444.88
  5. Step 5: Solve for x
    x = 111,316,447,617,444.88/12,929,869
  6. Step 6: Final answer
    x = 8,609,247.91

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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.