Home / 20,458,459.22-28,232,820.69-11,165,944.82

Finding the Fourth Proportional to 20,458,459.22, 28,232,820.69 and 11,165,944.82

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Solution

The fourth proportional to 20,458,459.22, 28,232,820.69 and 11,165,944.82 is: 15,409,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,459.22 : 28,232,820.69 = 11,165,944.82 : x
  2. Step 2: Convert to fraction form
    20,458,459.22/28,232,820.69 = 11,165,944.82/x
  3. Step 3: Cross multiply
    20,458,459.22x = 28,232,820.69 × 11,165,944.82
  4. Step 4: Simplify right side
    20,458,459.22x = 315,246,117,937,494.38
  5. Step 5: Solve for x
    x = 315,246,117,937,494.38/20,458,459.22
  6. Step 6: Final answer
    x = 15,409,084.06

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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.