Home / 20,693,917.56-28,556,239.16-12,429,068.69

Finding the Fourth Proportional to 20,693,917.56, 28,556,239.16 and 12,429,068.69

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Solution

The fourth proportional to 20,693,917.56, 28,556,239.16 and 12,429,068.69 is: 17,151,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,917.56 : 28,556,239.16 = 12,429,068.69 : x
  2. Step 2: Convert to fraction form
    20,693,917.56/28,556,239.16 = 12,429,068.69/x
  3. Step 3: Cross multiply
    20,693,917.56x = 28,556,239.16 × 12,429,068.69
  4. Step 4: Simplify right side
    20,693,917.56x = 354,927,458,150,171.19
  5. Step 5: Solve for x
    x = 354,927,458,150,171.19/20,693,917.56
  6. Step 6: Final answer
    x = 17,151,293.71

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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.