Home / 5,305,134.72-7,960,053.76-2,780,189.44

Finding the Fourth Proportional to 5,305,134.72, 7,960,053.76 and 2,780,189.44

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Solution

The fourth proportional to 5,305,134.72, 7,960,053.76 and 2,780,189.44 is: 4,171,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305,134.72 : 7,960,053.76 = 2,780,189.44 : x
  2. Step 2: Convert to fraction form
    5,305,134.72/7,960,053.76 = 2,780,189.44/x
  3. Step 3: Cross multiply
    5,305,134.72x = 7,960,053.76 × 2,780,189.44
  4. Step 4: Simplify right side
    5,305,134.72x = 22,130,457,405,384.29
  5. Step 5: Solve for x
    x = 22,130,457,405,384.29/5,305,134.72
  6. Step 6: Final answer
    x = 4,171,516.57

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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.