Home / 20,209,228.94-27,879,936.59-12,369,090.21

Finding the Fourth Proportional to 20,209,228.94, 27,879,936.59 and 12,369,090.21

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Solution

The fourth proportional to 20,209,228.94, 27,879,936.59 and 12,369,090.21 is: 17,063,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209,228.94 : 27,879,936.59 = 12,369,090.21 : x
  2. Step 2: Convert to fraction form
    20,209,228.94/27,879,936.59 = 12,369,090.21/x
  3. Step 3: Cross multiply
    20,209,228.94x = 27,879,936.59 × 12,369,090.21
  4. Step 4: Simplify right side
    20,209,228.94x = 344,849,450,668,944.38
  5. Step 5: Solve for x
    x = 344,849,450,668,944.38/20,209,228.94
  6. Step 6: Final answer
    x = 17,063,958.84

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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.