Home / 12,919,786.03-19,382,434.67-6,446,342.17

Finding the Fourth Proportional to 12,919,786.03, 19,382,434.67 and 6,446,342.17

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Solution

The fourth proportional to 12,919,786.03, 19,382,434.67 and 6,446,342.17 is: 9,670,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,786.03 : 19,382,434.67 = 6,446,342.17 : x
  2. Step 2: Convert to fraction form
    12,919,786.03/19,382,434.67 = 6,446,342.17/x
  3. Step 3: Cross multiply
    12,919,786.03x = 19,382,434.67 × 6,446,342.17
  4. Step 4: Simplify right side
    12,919,786.03x = 124,945,805,970,491.05
  5. Step 5: Solve for x
    x = 124,945,805,970,491.05/12,919,786.03
  6. Step 6: Final answer
    x = 9,670,888.18

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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.