Home / 20,453,855.10-28,226,918.96-11,162,023.90

Finding the Fourth Proportional to 20,453,855.10, 28,226,918.96 and 11,162,023.90

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Solution

The fourth proportional to 20,453,855.10, 28,226,918.96 and 11,162,023.90 is: 15,403,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453,855.10 : 28,226,918.96 = 11,162,023.90 : x
  2. Step 2: Convert to fraction form
    20,453,855.10/28,226,918.96 = 11,162,023.90/x
  3. Step 3: Cross multiply
    20,453,855.10x = 28,226,918.96 × 11,162,023.90
  4. Step 4: Simplify right side
    20,453,855.10x = 315,069,544,054,883.19
  5. Step 5: Solve for x
    x = 315,069,544,054,883.19/20,453,855.10
  6. Step 6: Final answer
    x = 15,403,919.82

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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.