Home / 19,118,979.78-28,691,714.52-7,603,267.02

Finding the Fourth Proportional to 19,118,979.78, 28,691,714.52 and 7,603,267.02

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Solution

The fourth proportional to 19,118,979.78, 28,691,714.52 and 7,603,267.02 is: 11,410,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,979.78 : 28,691,714.52 = 7,603,267.02 : x
  2. Step 2: Convert to fraction form
    19,118,979.78/28,691,714.52 = 7,603,267.02/x
  3. Step 3: Cross multiply
    19,118,979.78x = 28,691,714.52 × 7,603,267.02
  4. Step 4: Simplify right side
    19,118,979.78x = 218,150,766,757,171.12
  5. Step 5: Solve for x
    x = 218,150,766,757,171.12/19,118,979.78
  6. Step 6: Final answer
    x = 11,410,167.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.