Home / 27,760,485,009.51-38,309,469,313.12-15,879,590,013.51

Finding the Fourth Proportional to 27,760,485,009.51, 38,309,469,313.12 and 15,879,590,013.51

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Solution

The fourth proportional to 27,760,485,009.51, 38,309,469,313.12 and 15,879,590,013.51 is: 21,913,834,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,760,485,009.51 : 38,309,469,313.12 = 15,879,590,013.51 : x
  2. Step 2: Convert to fraction form
    27,760,485,009.51/38,309,469,313.12 = 15,879,590,013.51/x
  3. Step 3: Cross multiply
    27,760,485,009.51x = 38,309,469,313.12 × 15,879,590,013.51
  4. Step 4: Simplify right side
    27,760,485,009.51x = 608,338,666,327,488,200,704
  5. Step 5: Solve for x
    x = 608,338,666,327,488,200,704/27,760,485,009.51
  6. Step 6: Final answer
    x = 21,913,834,218.64

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Double scale
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1.5x scale

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.