Home / 13,291,653.72-19,979,098.38-8,771,748.42

Finding the Fourth Proportional to 13,291,653.72, 19,979,098.38 and 8,771,748.42

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Solution

The fourth proportional to 13,291,653.72, 19,979,098.38 and 8,771,748.42 is: 13,185,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,653.72 : 19,979,098.38 = 8,771,748.42 : x
  2. Step 2: Convert to fraction form
    13,291,653.72/19,979,098.38 = 8,771,748.42/x
  3. Step 3: Cross multiply
    13,291,653.72x = 19,979,098.38 × 8,771,748.42
  4. Step 4: Simplify right side
    13,291,653.72x = 175,251,624,647,789.56
  5. Step 5: Solve for x
    x = 175,251,624,647,789.56/13,291,653.72
  6. Step 6: Final answer
    x = 13,185,088.05

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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.