Home / 20,912,511.44-28,854,549.05-12,652,368.36

Finding the Fourth Proportional to 20,912,511.44, 28,854,549.05 and 12,652,368.36

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Solution

The fourth proportional to 20,912,511.44, 28,854,549.05 and 12,652,368.36 is: 17,457,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,511.44 : 28,854,549.05 = 12,652,368.36 : x
  2. Step 2: Convert to fraction form
    20,912,511.44/28,854,549.05 = 12,652,368.36/x
  3. Step 3: Cross multiply
    20,912,511.44x = 28,854,549.05 × 12,652,368.36
  4. Step 4: Simplify right side
    20,912,511.44x = 365,078,383,379,026.25
  5. Step 5: Solve for x
    x = 365,078,383,379,026.25/20,912,511.44
  6. Step 6: Final answer
    x = 17,457,414.64

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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.