Home / 20,146,066.80-27,801,480.16-10,978,707.12

Finding the Fourth Proportional to 20,146,066.80, 27,801,480.16 and 10,978,707.12

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Solution

The fourth proportional to 20,146,066.80, 27,801,480.16 and 10,978,707.12 is: 15,150,565.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,066.80 : 27,801,480.16 = 10,978,707.12 : x
  2. Step 2: Convert to fraction form
    20,146,066.80/27,801,480.16 = 10,978,707.12/x
  3. Step 3: Cross multiply
    20,146,066.80x = 27,801,480.16 × 10,978,707.12
  4. Step 4: Simplify right side
    20,146,066.80x = 305,224,308,179,130.69
  5. Step 5: Solve for x
    x = 305,224,308,179,130.69/20,146,066.80
  6. Step 6: Final answer
    x = 15,150,565.68

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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.