Home / 20,368,796.10-28,108,376.64-11,201,438.85

Finding the Fourth Proportional to 20,368,796.10, 28,108,376.64 and 11,201,438.85

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Solution

The fourth proportional to 20,368,796.10, 28,108,376.64 and 11,201,438.85 is: 15,457,676.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,796.10 : 28,108,376.64 = 11,201,438.85 : x
  2. Step 2: Convert to fraction form
    20,368,796.10/28,108,376.64 = 11,201,438.85/x
  3. Step 3: Cross multiply
    20,368,796.10x = 28,108,376.64 × 11,201,438.85
  4. Step 4: Simplify right side
    20,368,796.10x = 314,854,262,105,728.44
  5. Step 5: Solve for x
    x = 314,854,262,105,728.44/20,368,796.10
  6. Step 6: Final answer
    x = 15,457,676.56

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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.