Home / 12,812,421.41-19,223,448.87-7,628,022.44

Finding the Fourth Proportional to 12,812,421.41, 19,223,448.87 and 7,628,022.44

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Solution

The fourth proportional to 12,812,421.41, 19,223,448.87 and 7,628,022.44 is: 11,444,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,421.41 : 19,223,448.87 = 7,628,022.44 : x
  2. Step 2: Convert to fraction form
    12,812,421.41/19,223,448.87 = 7,628,022.44/x
  3. Step 3: Cross multiply
    12,812,421.41x = 19,223,448.87 × 7,628,022.44
  4. Step 4: Simplify right side
    12,812,421.41x = 146,636,899,258,435.41
  5. Step 5: Solve for x
    x = 146,636,899,258,435.41/12,812,421.41
  6. Step 6: Final answer
    x = 11,444,901.37

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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.