Home / 20,108,395.09-27,748,768.07-11,406,380.92

Finding the Fourth Proportional to 20,108,395.09, 27,748,768.07 and 11,406,380.92

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Solution

The fourth proportional to 20,108,395.09, 27,748,768.07 and 11,406,380.92 is: 15,740,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,395.09 : 27,748,768.07 = 11,406,380.92 : x
  2. Step 2: Convert to fraction form
    20,108,395.09/27,748,768.07 = 11,406,380.92/x
  3. Step 3: Cross multiply
    20,108,395.09x = 27,748,768.07 × 11,406,380.92
  4. Step 4: Simplify right side
    20,108,395.09x = 316,513,018,667,153.25
  5. Step 5: Solve for x
    x = 316,513,018,667,153.25/20,108,395.09
  6. Step 6: Final answer
    x = 15,740,342.14

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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.