Home / 21,575,601.72-29,775,235.50-12,408,251.76

Finding the Fourth Proportional to 21,575,601.72, 29,775,235.50 and 12,408,251.76

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Solution

The fourth proportional to 21,575,601.72, 29,775,235.50 and 12,408,251.76 is: 17,123,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575,601.72 : 29,775,235.50 = 12,408,251.76 : x
  2. Step 2: Convert to fraction form
    21,575,601.72/29,775,235.50 = 12,408,251.76/x
  3. Step 3: Cross multiply
    21,575,601.72x = 29,775,235.50 × 12,408,251.76
  4. Step 4: Simplify right side
    21,575,601.72x = 369,458,618,297,289.50
  5. Step 5: Solve for x
    x = 369,458,618,297,289.50/21,575,601.72
  6. Step 6: Final answer
    x = 17,123,907.97

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1.5x scale

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.