Home / 27,871,520-38,462,697.69-15,648,639.44

Finding the Fourth Proportional to 27,871,520, 38,462,697.69 and 15,648,639.44

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Solution

The fourth proportional to 27,871,520, 38,462,697.69 and 15,648,639.44 is: 21,595,122.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871,520 : 38,462,697.69 = 15,648,639.44 : x
  2. Step 2: Convert to fraction form
    27,871,520/38,462,697.69 = 15,648,639.44/x
  3. Step 3: Cross multiply
    27,871,520x = 38,462,697.69 × 15,648,639.44
  4. Step 4: Simplify right side
    27,871,520x = 601,888,888,040,530.88
  5. Step 5: Solve for x
    x = 601,888,888,040,530.88/27,871,520
  6. Step 6: Final answer
    x = 21,595,122.48

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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.