Home / 7,976,855.72-11,968,298.40-3,122,631.02

Finding the Fourth Proportional to 7,976,855.72, 11,968,298.40 and 3,122,631.02

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Solution

The fourth proportional to 7,976,855.72, 11,968,298.40 and 3,122,631.02 is: 4,685,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976,855.72 : 11,968,298.40 = 3,122,631.02 : x
  2. Step 2: Convert to fraction form
    7,976,855.72/11,968,298.40 = 3,122,631.02/x
  3. Step 3: Cross multiply
    7,976,855.72x = 11,968,298.40 × 3,122,631.02
  4. Step 4: Simplify right side
    7,976,855.72x = 37,372,579,780,614.88
  5. Step 5: Solve for x
    x = 37,372,579,780,614.88/7,976,855.72
  6. Step 6: Final answer
    x = 4,685,126.71

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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.