Home / 12,940,806.81-19,391,256.27-6,367,970.28

Finding the Fourth Proportional to 12,940,806.81, 19,391,256.27 and 6,367,970.28

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Solution

The fourth proportional to 12,940,806.81, 19,391,256.27 and 6,367,970.28 is: 9,542,136.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,806.81 : 19,391,256.27 = 6,367,970.28 : x
  2. Step 2: Convert to fraction form
    12,940,806.81/19,391,256.27 = 6,367,970.28/x
  3. Step 3: Cross multiply
    12,940,806.81x = 19,391,256.27 × 6,367,970.28
  4. Step 4: Simplify right side
    12,940,806.81x = 123,482,943,619,223.66
  5. Step 5: Solve for x
    x = 123,482,943,619,223.66/12,940,806.81
  6. Step 6: Final answer
    x = 9,542,136.39

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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.