Home / 20,781,262.35-28,679,027.72-11,613,904.83

Finding the Fourth Proportional to 20,781,262.35, 28,679,027.72 and 11,613,904.83

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Solution

The fourth proportional to 20,781,262.35, 28,679,027.72 and 11,613,904.83 is: 16,027,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,262.35 : 28,679,027.72 = 11,613,904.83 : x
  2. Step 2: Convert to fraction form
    20,781,262.35/28,679,027.72 = 11,613,904.83/x
  3. Step 3: Cross multiply
    20,781,262.35x = 28,679,027.72 × 11,613,904.83
  4. Step 4: Simplify right side
    20,781,262.35x = 333,075,498,498,942.38
  5. Step 5: Solve for x
    x = 333,075,498,498,942.38/20,781,262.35
  6. Step 6: Final answer
    x = 16,027,683.64

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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.