Home / 20,620,027.25-28,455,656.42-11,328,199.12

Finding the Fourth Proportional to 20,620,027.25, 28,455,656.42 and 11,328,199.12

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Solution

The fourth proportional to 20,620,027.25, 28,455,656.42 and 11,328,199.12 is: 15,632,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,027.25 : 28,455,656.42 = 11,328,199.12 : x
  2. Step 2: Convert to fraction form
    20,620,027.25/28,455,656.42 = 11,328,199.12/x
  3. Step 3: Cross multiply
    20,620,027.25x = 28,455,656.42 × 11,328,199.12
  4. Step 4: Simplify right side
    20,620,027.25x = 322,351,341,817,147.06
  5. Step 5: Solve for x
    x = 322,351,341,817,147.06/20,620,027.25
  6. Step 6: Final answer
    x = 15,632,925.12

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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.