Home / 15,091,779.72-20,826,002.64-8,216,285.88

Finding the Fourth Proportional to 15,091,779.72, 20,826,002.64 and 8,216,285.88

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Solution

The fourth proportional to 15,091,779.72, 20,826,002.64 and 8,216,285.88 is: 11,338,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091,779.72 : 20,826,002.64 = 8,216,285.88 : x
  2. Step 2: Convert to fraction form
    15,091,779.72/20,826,002.64 = 8,216,285.88/x
  3. Step 3: Cross multiply
    15,091,779.72x = 20,826,002.64 × 8,216,285.88
  4. Step 4: Simplify right side
    15,091,779.72x = 171,112,391,427,874.72
  5. Step 5: Solve for x
    x = 171,112,391,427,874.72/15,091,779.72
  6. Step 6: Final answer
    x = 11,338,118.80

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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.