Home / 28,018,610.12-38,667,414.74-15,459,603.39

Finding the Fourth Proportional to 28,018,610.12, 38,667,414.74 and 15,459,603.39

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Solution

The fourth proportional to 28,018,610.12, 38,667,414.74 and 15,459,603.39 is: 21,335,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,610.12 : 38,667,414.74 = 15,459,603.39 : x
  2. Step 2: Convert to fraction form
    28,018,610.12/38,667,414.74 = 15,459,603.39/x
  3. Step 3: Cross multiply
    28,018,610.12x = 38,667,414.74 × 15,459,603.39
  4. Step 4: Simplify right side
    28,018,610.12x = 597,782,895,919,742
  5. Step 5: Solve for x
    x = 597,782,895,919,742/28,018,610.12
  6. Step 6: Final answer
    x = 21,335,208.76

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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.