Home / 12,021,923.76-16,591,956.12-7,439,721.36

Finding the Fourth Proportional to 12,021,923.76, 16,591,956.12 and 7,439,721.36

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Solution

The fourth proportional to 12,021,923.76, 16,591,956.12 and 7,439,721.36 is: 10,267,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021,923.76 : 16,591,956.12 = 7,439,721.36 : x
  2. Step 2: Convert to fraction form
    12,021,923.76/16,591,956.12 = 7,439,721.36/x
  3. Step 3: Cross multiply
    12,021,923.76x = 16,591,956.12 × 7,439,721.36
  4. Step 4: Simplify right side
    12,021,923.76x = 123,439,530,350,146.72
  5. Step 5: Solve for x
    x = 123,439,530,350,146.72/12,021,923.76
  6. Step 6: Final answer
    x = 10,267,868.34

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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.