Home / 20,368,795.85-28,108,376.30-11,201,438.60

Finding the Fourth Proportional to 20,368,795.85, 28,108,376.30 and 11,201,438.60

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Solution

The fourth proportional to 20,368,795.85, 28,108,376.30 and 11,201,438.60 is: 15,457,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,795.85 : 28,108,376.30 = 11,201,438.60 : x
  2. Step 2: Convert to fraction form
    20,368,795.85/28,108,376.30 = 11,201,438.60/x
  3. Step 3: Cross multiply
    20,368,795.85x = 28,108,376.30 × 11,201,438.60
  4. Step 4: Simplify right side
    20,368,795.85x = 314,854,251,214,138
  5. Step 5: Solve for x
    x = 314,854,251,214,138/20,368,795.85
  6. Step 6: Final answer
    x = 15,457,676.22

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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.