Home / 21,283,157.72-29,370,757.60-11,493,601.36

Finding the Fourth Proportional to 21,283,157.72, 29,370,757.60 and 11,493,601.36

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Solution

The fourth proportional to 21,283,157.72, 29,370,757.60 and 11,493,601.36 is: 15,861,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283,157.72 : 29,370,757.60 = 11,493,601.36 : x
  2. Step 2: Convert to fraction form
    21,283,157.72/29,370,757.60 = 11,493,601.36/x
  3. Step 3: Cross multiply
    21,283,157.72x = 29,370,757.60 × 11,493,601.36
  4. Step 4: Simplify right side
    21,283,157.72x = 337,575,779,495,590.31
  5. Step 5: Solve for x
    x = 337,575,779,495,590.31/21,283,157.72
  6. Step 6: Final answer
    x = 15,861,169.85

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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.