Home / 20,579,173.80-30,871,584-11,947,326.39

Finding the Fourth Proportional to 20,579,173.80, 30,871,584 and 11,947,326.39

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Solution

The fourth proportional to 20,579,173.80, 30,871,584 and 11,947,326.39 is: 17,922,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579,173.80 : 30,871,584 = 11,947,326.39 : x
  2. Step 2: Convert to fraction form
    20,579,173.80/30,871,584 = 11,947,326.39/x
  3. Step 3: Cross multiply
    20,579,173.80x = 30,871,584 × 11,947,326.39
  4. Step 4: Simplify right side
    20,579,173.80x = 368,832,890,224,301.75
  5. Step 5: Solve for x
    x = 368,832,890,224,301.75/20,579,173.80
  6. Step 6: Final answer
    x = 17,922,628.66

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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.