Home / 19,579,279-27,017,823.45-11,319,873.69

Finding the Fourth Proportional to 19,579,279, 27,017,823.45 and 11,319,873.69

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Solution

The fourth proportional to 19,579,279, 27,017,823.45 and 11,319,873.69 is: 15,620,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579,279 : 27,017,823.45 = 11,319,873.69 : x
  2. Step 2: Convert to fraction form
    19,579,279/27,017,823.45 = 11,319,873.69/x
  3. Step 3: Cross multiply
    19,579,279x = 27,017,823.45 × 11,319,873.69
  4. Step 4: Simplify right side
    19,579,279x = 305,838,348,832,720
  5. Step 5: Solve for x
    x = 305,838,348,832,720/19,579,279
  6. Step 6: Final answer
    x = 15,620,511.30

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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.