Home / 28,317,961.80-42,440,201.10-13,139,598.60

Finding the Fourth Proportional to 28,317,961.80, 42,440,201.10 and 13,139,598.60

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Solution

The fourth proportional to 28,317,961.80, 42,440,201.10 and 13,139,598.60 is: 19,692,349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317,961.80 : 42,440,201.10 = 13,139,598.60 : x
  2. Step 2: Convert to fraction form
    28,317,961.80/42,440,201.10 = 13,139,598.60/x
  3. Step 3: Cross multiply
    28,317,961.80x = 42,440,201.10 × 13,139,598.60
  4. Step 4: Simplify right side
    28,317,961.80x = 557,647,206,957,278.44
  5. Step 5: Solve for x
    x = 557,647,206,957,278.44/28,317,961.80
  6. Step 6: Final answer
    x = 19,692,349.71

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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.