Home / 12,919,579.29-19,382,206.55-3,820,967.51

Finding the Fourth Proportional to 12,919,579.29, 19,382,206.55 and 3,820,967.51

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Solution

The fourth proportional to 12,919,579.29, 19,382,206.55 and 3,820,967.51 is: 5,732,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,579.29 : 19,382,206.55 = 3,820,967.51 : x
  2. Step 2: Convert to fraction form
    12,919,579.29/19,382,206.55 = 3,820,967.51/x
  3. Step 3: Cross multiply
    12,919,579.29x = 19,382,206.55 × 3,820,967.51
  4. Step 4: Simplify right side
    12,919,579.29x = 74,058,781,383,643.33
  5. Step 5: Solve for x
    x = 74,058,781,383,643.33/12,919,579.29
  6. Step 6: Final answer
    x = 5,732,290.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.