Home / 20,700,700.10-28,567,161.38-11,408,605.26

Finding the Fourth Proportional to 20,700,700.10, 28,567,161.38 and 11,408,605.26

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Solution

The fourth proportional to 20,700,700.10, 28,567,161.38 and 11,408,605.26 is: 15,743,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700,700.10 : 28,567,161.38 = 11,408,605.26 : x
  2. Step 2: Convert to fraction form
    20,700,700.10/28,567,161.38 = 11,408,605.26/x
  3. Step 3: Cross multiply
    20,700,700.10x = 28,567,161.38 × 11,408,605.26
  4. Step 4: Simplify right side
    20,700,700.10x = 325,911,467,583,136.81
  5. Step 5: Solve for x
    x = 325,911,467,583,136.81/20,700,700.10
  6. Step 6: Final answer
    x = 15,743,982.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.