Home / 5,421,379.20-8,132,022.36-1,377,878.64

Finding the Fourth Proportional to 5,421,379.20, 8,132,022.36 and 1,377,878.64

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Solution

The fourth proportional to 5,421,379.20, 8,132,022.36 and 1,377,878.64 is: 2,066,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,379.20 : 8,132,022.36 = 1,377,878.64 : x
  2. Step 2: Convert to fraction form
    5,421,379.20/8,132,022.36 = 1,377,878.64/x
  3. Step 3: Cross multiply
    5,421,379.20x = 8,132,022.36 × 1,377,878.64
  4. Step 4: Simplify right side
    5,421,379.20x = 11,204,939,909,846.39
  5. Step 5: Solve for x
    x = 11,204,939,909,846.39/5,421,379.20
  6. Step 6: Final answer
    x = 2,066,806.16

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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.