Home / 27,760,485,008.51-38,309,469,311.74-15,879,590,012.51

Finding the Fourth Proportional to 27,760,485,008.51, 38,309,469,311.74 and 15,879,590,012.51

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Solution

The fourth proportional to 27,760,485,008.51, 38,309,469,311.74 and 15,879,590,012.51 is: 21,913,834,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,760,485,008.51 : 38,309,469,311.74 = 15,879,590,012.51 : x
  2. Step 2: Convert to fraction form
    27,760,485,008.51/38,309,469,311.74 = 15,879,590,012.51/x
  3. Step 3: Cross multiply
    27,760,485,008.51x = 38,309,469,311.74 × 15,879,590,012.51
  4. Step 4: Simplify right side
    27,760,485,008.51x = 608,338,666,267,264,811,008
  5. Step 5: Solve for x
    x = 608,338,666,267,264,811,008/27,760,485,008.51
  6. Step 6: Final answer
    x = 21,913,834,217.26

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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.