Home / 20,579,176.31-30,871,587.69-11,947,328.87

Finding the Fourth Proportional to 20,579,176.31, 30,871,587.69 and 11,947,328.87

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Solution

The fourth proportional to 20,579,176.31, 30,871,587.69 and 11,947,328.87 is: 17,922,632.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579,176.31 : 30,871,587.69 = 11,947,328.87 : x
  2. Step 2: Convert to fraction form
    20,579,176.31/30,871,587.69 = 11,947,328.87/x
  3. Step 3: Cross multiply
    20,579,176.31x = 30,871,587.69 × 11,947,328.87
  4. Step 4: Simplify right side
    20,579,176.31x = 368,833,010,717,115.69
  5. Step 5: Solve for x
    x = 368,833,010,717,115.69/20,579,176.31
  6. Step 6: Final answer
    x = 17,922,632.34

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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.